Home / 47,939.20-66,155.88-27,807.76

Finding the Fourth Proportional to 47,939.20, 66,155.88 and 27,807.76

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Solution

The fourth proportional to 47,939.20, 66,155.88 and 27,807.76 is: 38,374.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,939.20 : 66,155.88 = 27,807.76 : x
  2. Step 2: Convert to fraction form
    47,939.20/66,155.88 = 27,807.76/x
  3. Step 3: Cross multiply
    47,939.20x = 66,155.88 × 27,807.76
  4. Step 4: Simplify right side
    47,939.20x = 1,839,646,833.63
  5. Step 5: Solve for x
    x = 1,839,646,833.63/47,939.20
  6. Step 6: Final answer
    x = 38,374.58

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1.5x scale

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.