Home / 56,726.50-85,079.72-21,179.84

Finding the Fourth Proportional to 56,726.50, 85,079.72 and 21,179.84

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Solution

The fourth proportional to 56,726.50, 85,079.72 and 21,179.84 is: 31,766.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,726.50 : 85,079.72 = 21,179.84 : x
  2. Step 2: Convert to fraction form
    56,726.50/85,079.72 = 21,179.84/x
  3. Step 3: Cross multiply
    56,726.50x = 85,079.72 × 21,179.84
  4. Step 4: Simplify right side
    56,726.50x = 1,801,974,856.84
  5. Step 5: Solve for x
    x = 1,801,974,856.84/56,726.50
  6. Step 6: Final answer
    x = 31,766.02

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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.