Home / 45,031.76-67,217.89-39,711.53

Finding the Fourth Proportional to 45,031.76, 67,217.89 and 39,711.53

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Solution

The fourth proportional to 45,031.76, 67,217.89 and 39,711.53 is: 59,276.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,031.76 : 67,217.89 = 39,711.53 : x
  2. Step 2: Convert to fraction form
    45,031.76/67,217.89 = 39,711.53/x
  3. Step 3: Cross multiply
    45,031.76x = 67,217.89 × 39,711.53
  4. Step 4: Simplify right side
    45,031.76x = 2,669,324,819.90
  5. Step 5: Solve for x
    x = 2,669,324,819.90/45,031.76
  6. Step 6: Final answer
    x = 59,276.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.