Finding the Fourth Proportional to 87,134.04, 130,536.74 and 51,489.08
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Solution
The fourth proportional to 87,134.04, 130,536.74 and 51,489.08 is: 77,136.52
Step by Step Solution
- Step 1: Write the proportion equation
87,134.04 : 130,536.74 = 51,489.08 : x - Step 2: Convert to fraction form
87,134.04/130,536.74 = 51,489.08/x - Step 3: Cross multiply
87,134.04x = 130,536.74 × 51,489.08 - Step 4: Simplify right side
87,134.04x = 6,721,216,648.80 - Step 5: Solve for x
x = 6,721,216,648.80/87,134.04 - Step 6: Final answer
x = 77,136.52
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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.