Finding the Fourth Proportional to 89,078.40, 122,923.44 and 48,790.08
Calculator
Solution
The fourth proportional to 89,078.40, 122,923.44 and 48,790.08 is: 67,327.71
Step by Step Solution
- Step 1: Write the proportion equation
89,078.40 : 122,923.44 = 48,790.08 : x - Step 2: Convert to fraction form
89,078.40/122,923.44 = 48,790.08/x - Step 3: Cross multiply
89,078.40x = 122,923.44 × 48,790.08 - Step 4: Simplify right side
89,078.40x = 5,997,444,471.48 - Step 5: Solve for x
x = 5,997,444,471.48/89,078.40 - Step 6: Final answer
x = 67,327.71
Related Problems
Find fourth proportional to 44,539.20, 61,461.72 and 24,395.04
Half scale
Find fourth proportional to 178,156.80, 245,846.88 and 97,580.16
Double scale
Find fourth proportional to 89,079.40, 122,924.82 and 48,791.08
Similar ratio
Find fourth proportional to 133,617.60, 184,385.16 and 73,185.12
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.