Home / 87,711.46-121,041.74-47,425.20

Finding the Fourth Proportional to 87,711.46, 121,041.74 and 47,425.20

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Solution

The fourth proportional to 87,711.46, 121,041.74 and 47,425.20 is: 65,446.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,711.46 : 121,041.74 = 47,425.20 : x
  2. Step 2: Convert to fraction form
    87,711.46/121,041.74 = 47,425.20/x
  3. Step 3: Cross multiply
    87,711.46x = 121,041.74 × 47,425.20
  4. Step 4: Simplify right side
    87,711.46x = 5,740,428,392.50
  5. Step 5: Solve for x
    x = 5,740,428,392.50/87,711.46
  6. Step 6: Final answer
    x = 65,446.73

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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.