Home / 81,335.38-112,217.24-45,519.70

Finding the Fourth Proportional to 81,335.38, 112,217.24 and 45,519.70

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Solution

The fourth proportional to 81,335.38, 112,217.24 and 45,519.70 is: 62,802.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,335.38 : 112,217.24 = 45,519.70 : x
  2. Step 2: Convert to fraction form
    81,335.38/112,217.24 = 45,519.70/x
  3. Step 3: Cross multiply
    81,335.38x = 112,217.24 × 45,519.70
  4. Step 4: Simplify right side
    81,335.38x = 5,108,095,099.63
  5. Step 5: Solve for x
    x = 5,108,095,099.63/81,335.38
  6. Step 6: Final answer
    x = 62,802.87

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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.