Home / 70,874.28-106,251.06-31,409.88

Finding the Fourth Proportional to 70,874.28, 106,251.06 and 31,409.88

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Solution

The fourth proportional to 70,874.28, 106,251.06 and 31,409.88 is: 47,088.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,874.28 : 106,251.06 = 31,409.88 : x
  2. Step 2: Convert to fraction form
    70,874.28/106,251.06 = 31,409.88/x
  3. Step 3: Cross multiply
    70,874.28x = 106,251.06 × 31,409.88
  4. Step 4: Simplify right side
    70,874.28x = 3,337,333,044.47
  5. Step 5: Solve for x
    x = 3,337,333,044.47/70,874.28
  6. Step 6: Final answer
    x = 47,088.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.