Finding the Fourth Proportional to 88,179.05, 121,721.99 and 61,337.14
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Solution
The fourth proportional to 88,179.05, 121,721.99 and 61,337.14 is: 84,669.53
Step by Step Solution
- Step 1: Write the proportion equation
88,179.05 : 121,721.99 = 61,337.14 : x - Step 2: Convert to fraction form
88,179.05/121,721.99 = 61,337.14/x - Step 3: Cross multiply
88,179.05x = 121,721.99 × 61,337.14 - Step 4: Simplify right side
88,179.05x = 7,466,078,741.71 - Step 5: Solve for x
x = 7,466,078,741.71/88,179.05 - Step 6: Final answer
x = 84,669.53
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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.