Home / 87,050.40-130,585-37,135.78

Finding the Fourth Proportional to 87,050.40, 130,585 and 37,135.78

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Solution

The fourth proportional to 87,050.40, 130,585 and 37,135.78 is: 55,707.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,050.40 : 130,585 = 37,135.78 : x
  2. Step 2: Convert to fraction form
    87,050.40/130,585 = 37,135.78/x
  3. Step 3: Cross multiply
    87,050.40x = 130,585 × 37,135.78
  4. Step 4: Simplify right side
    87,050.40x = 4,849,375,831.30
  5. Step 5: Solve for x
    x = 4,849,375,831.30/87,050.40
  6. Step 6: Final answer
    x = 55,707.68

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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.