Finding the Fourth Proportional to 88,156.29, 121,655.23 and 47,869.70
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Solution
The fourth proportional to 88,156.29, 121,655.23 and 47,869.70 is: 66,059.94
Step by Step Solution
- Step 1: Write the proportion equation
88,156.29 : 121,655.23 = 47,869.70 : x - Step 2: Convert to fraction form
88,156.29/121,655.23 = 47,869.70/x - Step 3: Cross multiply
88,156.29x = 121,655.23 × 47,869.70 - Step 4: Simplify right side
88,156.29x = 5,823,599,363.53 - Step 5: Solve for x
x = 5,823,599,363.53/88,156.29 - Step 6: Final answer
x = 66,059.94
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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.