Home / 47,257.02-65,154.78-31,121.82

Finding the Fourth Proportional to 47,257.02, 65,154.78 and 31,121.82

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Solution

The fourth proportional to 47,257.02, 65,154.78 and 31,121.82 is: 42,908.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,257.02 : 65,154.78 = 31,121.82 : x
  2. Step 2: Convert to fraction form
    47,257.02/65,154.78 = 31,121.82/x
  3. Step 3: Cross multiply
    47,257.02x = 65,154.78 × 31,121.82
  4. Step 4: Simplify right side
    47,257.02x = 2,027,735,335.30
  5. Step 5: Solve for x
    x = 2,027,735,335.30/47,257.02
  6. Step 6: Final answer
    x = 42,908.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.