Home / 45,099.76-67,631.10-13,498.66

Finding the Fourth Proportional to 45,099.76, 67,631.10 and 13,498.66

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Solution

The fourth proportional to 45,099.76, 67,631.10 and 13,498.66 is: 20,242.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,099.76 : 67,631.10 = 13,498.66 : x
  2. Step 2: Convert to fraction form
    45,099.76/67,631.10 = 13,498.66/x
  3. Step 3: Cross multiply
    45,099.76x = 67,631.10 × 13,498.66
  4. Step 4: Simplify right side
    45,099.76x = 912,929,224.33
  5. Step 5: Solve for x
    x = 912,929,224.33/45,099.76
  6. Step 6: Final answer
    x = 20,242.44

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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.