Home / 87,097.28-130,700.12-47,099.65

Finding the Fourth Proportional to 87,097.28, 130,700.12 and 47,099.65

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Solution

The fourth proportional to 87,097.28, 130,700.12 and 47,099.65 is: 70,678.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,097.28 : 130,700.12 = 47,099.65 : x
  2. Step 2: Convert to fraction form
    87,097.28/130,700.12 = 47,099.65/x
  3. Step 3: Cross multiply
    87,097.28x = 130,700.12 × 47,099.65
  4. Step 4: Simplify right side
    87,097.28x = 6,155,929,874.78
  5. Step 5: Solve for x
    x = 6,155,929,874.78/87,097.28
  6. Step 6: Final answer
    x = 70,678.79

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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.