Finding the Fourth Proportional to 88,393.74, 121,981.04 and 48,106.65
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Solution
The fourth proportional to 88,393.74, 121,981.04 and 48,106.65 is: 66,385.91
Step by Step Solution
- Step 1: Write the proportion equation
88,393.74 : 121,981.04 = 48,106.65 : x - Step 2: Convert to fraction form
88,393.74/121,981.04 = 48,106.65/x - Step 3: Cross multiply
88,393.74x = 121,981.04 × 48,106.65 - Step 4: Simplify right side
88,393.74x = 5,868,098,957.38 - Step 5: Solve for x
x = 5,868,098,957.38/88,393.74 - Step 6: Final answer
x = 66,385.91
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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.