Finding the Fourth Proportional to 88,278.68, 121,842.28 and 52,461.76
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Solution
The fourth proportional to 88,278.68, 121,842.28 and 52,461.76 is: 72,407.75
Step by Step Solution
- Step 1: Write the proportion equation
88,278.68 : 121,842.28 = 52,461.76 : x - Step 2: Convert to fraction form
88,278.68/121,842.28 = 52,461.76/x - Step 3: Cross multiply
88,278.68x = 121,842.28 × 52,461.76 - Step 4: Simplify right side
88,278.68x = 6,392,060,451.21 - Step 5: Solve for x
x = 6,392,060,451.21/88,278.68 - Step 6: Final answer
x = 72,407.75
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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.