Home / 56,247.48-84,371.40-21,177.72

Finding the Fourth Proportional to 56,247.48, 84,371.40 and 21,177.72

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Solution

The fourth proportional to 56,247.48, 84,371.40 and 21,177.72 is: 31,766.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,247.48 : 84,371.40 = 21,177.72 : x
  2. Step 2: Convert to fraction form
    56,247.48/84,371.40 = 21,177.72/x
  3. Step 3: Cross multiply
    56,247.48x = 84,371.40 × 21,177.72
  4. Step 4: Simplify right side
    56,247.48x = 1,786,793,885.21
  5. Step 5: Solve for x
    x = 1,786,793,885.21/56,247.48
  6. Step 6: Final answer
    x = 31,766.65

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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.