Home / 101,712.12-152,569.64-31,587

Finding the Fourth Proportional to 101,712.12, 152,569.64 and 31,587

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Solution

The fourth proportional to 101,712.12, 152,569.64 and 31,587 is: 47,380.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,712.12 : 152,569.64 = 31,587 : x
  2. Step 2: Convert to fraction form
    101,712.12/152,569.64 = 31,587/x
  3. Step 3: Cross multiply
    101,712.12x = 152,569.64 × 31,587
  4. Step 4: Simplify right side
    101,712.12x = 4,819,217,218.68
  5. Step 5: Solve for x
    x = 4,819,217,218.68/101,712.12
  6. Step 6: Final answer
    x = 47,380.95

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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.