Home / 87,012.82-130,571.07-31,613.14

Finding the Fourth Proportional to 87,012.82, 130,571.07 and 31,613.14

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Solution

The fourth proportional to 87,012.82, 130,571.07 and 31,613.14 is: 47,438.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,012.82 : 130,571.07 = 31,613.14 : x
  2. Step 2: Convert to fraction form
    87,012.82/130,571.07 = 31,613.14/x
  3. Step 3: Cross multiply
    87,012.82x = 130,571.07 × 31,613.14
  4. Step 4: Simplify right side
    87,012.82x = 4,127,761,515.86
  5. Step 5: Solve for x
    x = 4,127,761,515.86/87,012.82
  6. Step 6: Final answer
    x = 47,438.54

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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.