Finding the Fourth Proportional to 87,599.08, 120,904.32 and 57,332.08
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Solution
The fourth proportional to 87,599.08, 120,904.32 and 57,332.08 is: 79,129.78
Step by Step Solution
- Step 1: Write the proportion equation
87,599.08 : 120,904.32 = 57,332.08 : x - Step 2: Convert to fraction form
87,599.08/120,904.32 = 57,332.08/x - Step 3: Cross multiply
87,599.08x = 120,904.32 × 57,332.08 - Step 4: Simplify right side
87,599.08x = 6,931,696,146.59 - Step 5: Solve for x
x = 6,931,696,146.59/87,599.08 - Step 6: Final answer
x = 79,129.78
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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.