Home / 92,780.12-139,179.29-26,220.76

Finding the Fourth Proportional to 92,780.12, 139,179.29 and 26,220.76

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Solution

The fourth proportional to 92,780.12, 139,179.29 and 26,220.76 is: 39,333.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,780.12 : 139,179.29 = 26,220.76 : x
  2. Step 2: Convert to fraction form
    92,780.12/139,179.29 = 26,220.76/x
  3. Step 3: Cross multiply
    92,780.12x = 139,179.29 × 26,220.76
  4. Step 4: Simplify right side
    92,780.12x = 3,649,386,760.06
  5. Step 5: Solve for x
    x = 3,649,386,760.06/92,780.12
  6. Step 6: Final answer
    x = 39,333.71

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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.