Home / 47,380.38-71,077.59-15,780.12

Finding the Fourth Proportional to 47,380.38, 71,077.59 and 15,780.12

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Solution

The fourth proportional to 47,380.38, 71,077.59 and 15,780.12 is: 23,672.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,380.38 : 71,077.59 = 15,780.12 : x
  2. Step 2: Convert to fraction form
    47,380.38/71,077.59 = 15,780.12/x
  3. Step 3: Cross multiply
    47,380.38x = 71,077.59 × 15,780.12
  4. Step 4: Simplify right side
    47,380.38x = 1,121,612,899.51
  5. Step 5: Solve for x
    x = 1,121,612,899.51/47,380.38
  6. Step 6: Final answer
    x = 23,672.52

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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.