Finding the Fourth Proportional to 97,121.21, 145,681.44 and 43,750.71
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Solution
The fourth proportional to 97,121.21, 145,681.44 and 43,750.71 is: 65,625.90
Step by Step Solution
- Step 1: Write the proportion equation
97,121.21 : 145,681.44 = 43,750.71 : x - Step 2: Convert to fraction form
97,121.21/145,681.44 = 43,750.71/x - Step 3: Cross multiply
97,121.21x = 145,681.44 × 43,750.71 - Step 4: Simplify right side
97,121.21x = 6,373,666,433.82 - Step 5: Solve for x
x = 6,373,666,433.82/97,121.21 - Step 6: Final answer
x = 65,625.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.