Home / 45,001.28-67,501.08-13,432.76

Finding the Fourth Proportional to 45,001.28, 67,501.08 and 13,432.76

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Solution

The fourth proportional to 45,001.28, 67,501.08 and 13,432.76 is: 20,148.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,001.28 : 67,501.08 = 13,432.76 : x
  2. Step 2: Convert to fraction form
    45,001.28/67,501.08 = 13,432.76/x
  3. Step 3: Cross multiply
    45,001.28x = 67,501.08 × 13,432.76
  4. Step 4: Simplify right side
    45,001.28x = 906,725,469.88
  5. Step 5: Solve for x
    x = 906,725,469.88/45,001.28
  6. Step 6: Final answer
    x = 20,148.88

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1.5x scale

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.