Finding the Fourth Proportional to 71,645.76, 107,454.65 and 68,089.55
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Solution
The fourth proportional to 71,645.76, 107,454.65 and 68,089.55 is: 102,121.02
Step by Step Solution
- Step 1: Write the proportion equation
71,645.76 : 107,454.65 = 68,089.55 : x - Step 2: Convert to fraction form
71,645.76/107,454.65 = 68,089.55/x - Step 3: Cross multiply
71,645.76x = 107,454.65 × 68,089.55 - Step 4: Simplify right side
71,645.76x = 7,316,537,886.19 - Step 5: Solve for x
x = 7,316,537,886.19/71,645.76 - Step 6: Final answer
x = 102,121.02
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.