Finding the Fourth Proportional to 77,008.68, 115,432.74 and 37,511.46
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Solution
The fourth proportional to 77,008.68, 115,432.74 and 37,511.46 is: 56,228.09
Step by Step Solution
- Step 1: Write the proportion equation
77,008.68 : 115,432.74 = 37,511.46 : x - Step 2: Convert to fraction form
77,008.68/115,432.74 = 37,511.46/x - Step 3: Cross multiply
77,008.68x = 115,432.74 × 37,511.46 - Step 4: Simplify right side
77,008.68x = 4,330,050,609.20 - Step 5: Solve for x
x = 4,330,050,609.20/77,008.68 - Step 6: Final answer
x = 56,228.09
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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.