Finding the Fourth Proportional to 88,332.11, 121,871.04 and 53,884.12
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Solution
The fourth proportional to 88,332.11, 121,871.04 and 53,884.12 is: 74,343.45
Step by Step Solution
- Step 1: Write the proportion equation
88,332.11 : 121,871.04 = 53,884.12 : x - Step 2: Convert to fraction form
88,332.11/121,871.04 = 53,884.12/x - Step 3: Cross multiply
88,332.11x = 121,871.04 × 53,884.12 - Step 4: Simplify right side
88,332.11x = 6,566,913,743.88 - Step 5: Solve for x
x = 6,566,913,743.88/88,332.11 - Step 6: Final answer
x = 74,343.45
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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.