Home / 87,280.13-130,798.13-47,212.61

Finding the Fourth Proportional to 87,280.13, 130,798.13 and 47,212.61

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Solution

The fourth proportional to 87,280.13, 130,798.13 and 47,212.61 is: 70,752.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,280.13 : 130,798.13 = 47,212.61 : x
  2. Step 2: Convert to fraction form
    87,280.13/130,798.13 = 47,212.61/x
  3. Step 3: Cross multiply
    87,280.13x = 130,798.13 × 47,212.61
  4. Step 4: Simplify right side
    87,280.13x = 6,175,320,210.37
  5. Step 5: Solve for x
    x = 6,175,320,210.37/87,280.13
  6. Step 6: Final answer
    x = 70,752.87

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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.