Home / 56,722.60-85,064.76-21,176.56

Finding the Fourth Proportional to 56,722.60, 85,064.76 and 21,176.56

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Solution

The fourth proportional to 56,722.60, 85,064.76 and 21,176.56 is: 31,757.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,722.60 : 85,064.76 = 21,176.56 : x
  2. Step 2: Convert to fraction form
    56,722.60/85,064.76 = 21,176.56/x
  3. Step 3: Cross multiply
    56,722.60x = 85,064.76 × 21,176.56
  4. Step 4: Simplify right side
    56,722.60x = 1,801,379,280.04
  5. Step 5: Solve for x
    x = 1,801,379,280.04/56,722.60
  6. Step 6: Final answer
    x = 31,757.70

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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.