Home / 48,139.63-72,209.61-13,079.29

Finding the Fourth Proportional to 48,139.63, 72,209.61 and 13,079.29

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Solution

The fourth proportional to 48,139.63, 72,209.61 and 13,079.29 is: 19,618.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,139.63 : 72,209.61 = 13,079.29 : x
  2. Step 2: Convert to fraction form
    48,139.63/72,209.61 = 13,079.29/x
  3. Step 3: Cross multiply
    48,139.63x = 72,209.61 × 13,079.29
  4. Step 4: Simplify right side
    48,139.63x = 944,450,135.39
  5. Step 5: Solve for x
    x = 944,450,135.39/48,139.63
  6. Step 6: Final answer
    x = 19,618.97

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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.