Finding the Fourth Proportional to 74,416.43, 102,635.28 and 48,948.95
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Solution
The fourth proportional to 74,416.43, 102,635.28 and 48,948.95 is: 67,510.48
Step by Step Solution
- Step 1: Write the proportion equation
74,416.43 : 102,635.28 = 48,948.95 : x - Step 2: Convert to fraction form
74,416.43/102,635.28 = 48,948.95/x - Step 3: Cross multiply
74,416.43x = 102,635.28 × 48,948.95 - Step 4: Simplify right side
74,416.43x = 5,023,888,675.78 - Step 5: Solve for x
x = 5,023,888,675.78/74,416.43 - Step 6: Final answer
x = 67,510.48
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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.