Home / 87,353.78-131,061.41-43,011.68

Finding the Fourth Proportional to 87,353.78, 131,061.41 and 43,011.68

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Solution

The fourth proportional to 87,353.78, 131,061.41 and 43,011.68 is: 64,532.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,353.78 : 131,061.41 = 43,011.68 : x
  2. Step 2: Convert to fraction form
    87,353.78/131,061.41 = 43,011.68/x
  3. Step 3: Cross multiply
    87,353.78x = 131,061.41 × 43,011.68
  4. Step 4: Simplify right side
    87,353.78x = 5,637,170,718.20
  5. Step 5: Solve for x
    x = 5,637,170,718.20/87,353.78
  6. Step 6: Final answer
    x = 64,532.65

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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.