Home / 87,819.30-121,189.88-47,532.71

Finding the Fourth Proportional to 87,819.30, 121,189.88 and 47,532.71

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Solution

The fourth proportional to 87,819.30, 121,189.88 and 47,532.71 is: 65,594.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,819.30 : 121,189.88 = 47,532.71 : x
  2. Step 2: Convert to fraction form
    87,819.30/121,189.88 = 47,532.71/x
  3. Step 3: Cross multiply
    87,819.30x = 121,189.88 × 47,532.71
  4. Step 4: Simplify right side
    87,819.30x = 5,760,483,420.97
  5. Step 5: Solve for x
    x = 5,760,483,420.97/87,819.30
  6. Step 6: Final answer
    x = 65,594.73

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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.