Home / 48,201.25-72,301.11-13,140.91

Finding the Fourth Proportional to 48,201.25, 72,301.11 and 13,140.91

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Solution

The fourth proportional to 48,201.25, 72,301.11 and 13,140.91 is: 19,711.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,201.25 : 72,301.11 = 13,140.91 : x
  2. Step 2: Convert to fraction form
    48,201.25/72,301.11 = 13,140.91/x
  3. Step 3: Cross multiply
    48,201.25x = 72,301.11 × 13,140.91
  4. Step 4: Simplify right side
    48,201.25x = 950,102,217.16
  5. Step 5: Solve for x
    x = 950,102,217.16/48,201.25
  6. Step 6: Final answer
    x = 19,711.15

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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.