Home / 87,159.46-120,240.06-51,332.30

Finding the Fourth Proportional to 87,159.46, 120,240.06 and 51,332.30

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Solution

The fourth proportional to 87,159.46, 120,240.06 and 51,332.30 is: 70,815.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,159.46 : 120,240.06 = 51,332.30 : x
  2. Step 2: Convert to fraction form
    87,159.46/120,240.06 = 51,332.30/x
  3. Step 3: Cross multiply
    87,159.46x = 120,240.06 × 51,332.30
  4. Step 4: Simplify right side
    87,159.46x = 6,172,198,831.94
  5. Step 5: Solve for x
    x = 6,172,198,831.94/87,159.46
  6. Step 6: Final answer
    x = 70,815.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.