Home / 83,335.13-125,002.76-21,005.63

Finding the Fourth Proportional to 83,335.13, 125,002.76 and 21,005.63

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Solution

The fourth proportional to 83,335.13, 125,002.76 and 21,005.63 is: 31,508.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,335.13 : 125,002.76 = 21,005.63 : x
  2. Step 2: Convert to fraction form
    83,335.13/125,002.76 = 21,005.63/x
  3. Step 3: Cross multiply
    83,335.13x = 125,002.76 × 21,005.63
  4. Step 4: Simplify right side
    83,335.13x = 2,625,761,725.54
  5. Step 5: Solve for x
    x = 2,625,761,725.54/83,335.13
  6. Step 6: Final answer
    x = 31,508.46

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1.5x scale

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.