Finding the Fourth Proportional to 88,387.34, 121,977.06 and 48,103.70
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Solution
The fourth proportional to 88,387.34, 121,977.06 and 48,103.70 is: 66,384.48
Step by Step Solution
- Step 1: Write the proportion equation
88,387.34 : 121,977.06 = 48,103.70 : x - Step 2: Convert to fraction form
88,387.34/121,977.06 = 48,103.70/x - Step 3: Cross multiply
88,387.34x = 121,977.06 × 48,103.70 - Step 4: Simplify right side
88,387.34x = 5,867,547,901.12 - Step 5: Solve for x
x = 5,867,547,901.12/88,387.34 - Step 6: Final answer
x = 66,384.48
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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.