Home / 47,278.13-70,869.33-30,648.71

Finding the Fourth Proportional to 47,278.13, 70,869.33 and 30,648.71

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Solution

The fourth proportional to 47,278.13, 70,869.33 and 30,648.71 is: 45,942.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,278.13 : 70,869.33 = 30,648.71 : x
  2. Step 2: Convert to fraction form
    47,278.13/70,869.33 = 30,648.71/x
  3. Step 3: Cross multiply
    47,278.13x = 70,869.33 × 30,648.71
  4. Step 4: Simplify right side
    47,278.13x = 2,172,053,720.24
  5. Step 5: Solve for x
    x = 2,172,053,720.24/47,278.13
  6. Step 6: Final answer
    x = 45,942.04

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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.