Home / 81,425.24-112,359.31-45,616.76

Finding the Fourth Proportional to 81,425.24, 112,359.31 and 45,616.76

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Solution

The fourth proportional to 81,425.24, 112,359.31 and 45,616.76 is: 62,946.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,425.24 : 112,359.31 = 45,616.76 : x
  2. Step 2: Convert to fraction form
    81,425.24/112,359.31 = 45,616.76/x
  3. Step 3: Cross multiply
    81,425.24x = 112,359.31 × 45,616.76
  4. Step 4: Simplify right side
    81,425.24x = 5,125,467,002.20
  5. Step 5: Solve for x
    x = 5,125,467,002.20/81,425.24
  6. Step 6: Final answer
    x = 62,946.91

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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.