Finding the Fourth Proportional to 77,246.10, 115,869.15 and 24,657.30
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Solution
The fourth proportional to 77,246.10, 115,869.15 and 24,657.30 is: 36,985.95
Step by Step Solution
- Step 1: Write the proportion equation
77,246.10 : 115,869.15 = 24,657.30 : x - Step 2: Convert to fraction form
77,246.10/115,869.15 = 24,657.30/x - Step 3: Cross multiply
77,246.10x = 115,869.15 × 24,657.30 - Step 4: Simplify right side
77,246.10x = 2,857,020,392.30 - Step 5: Solve for x
x = 2,857,020,392.30/77,246.10 - Step 6: Final answer
x = 36,985.95
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1.5x scale
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.