Home / 47,901.28-66,107.28-31,182.88

Finding the Fourth Proportional to 47,901.28, 66,107.28 and 31,182.88

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Solution

The fourth proportional to 47,901.28, 66,107.28 and 31,182.88 is: 43,034.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,901.28 : 66,107.28 = 31,182.88 : x
  2. Step 2: Convert to fraction form
    47,901.28/66,107.28 = 31,182.88/x
  3. Step 3: Cross multiply
    47,901.28x = 66,107.28 × 31,182.88
  4. Step 4: Simplify right side
    47,901.28x = 2,061,415,379.37
  5. Step 5: Solve for x
    x = 2,061,415,379.37/47,901.28
  6. Step 6: Final answer
    x = 43,034.66

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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.