Finding the Fourth Proportional to 97,859.87, 135,049.80 and 55,417.49
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Solution
The fourth proportional to 97,859.87, 135,049.80 and 55,417.49 is: 76,477.94
Step by Step Solution
- Step 1: Write the proportion equation
97,859.87 : 135,049.80 = 55,417.49 : x - Step 2: Convert to fraction form
97,859.87/135,049.80 = 55,417.49/x - Step 3: Cross multiply
97,859.87x = 135,049.80 × 55,417.49 - Step 4: Simplify right side
97,859.87x = 7,484,120,941.00 - Step 5: Solve for x
x = 7,484,120,941.00/97,859.87 - Step 6: Final answer
x = 76,477.94
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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.