Home / 57,521.85-86,279.28-21,491.43

Finding the Fourth Proportional to 57,521.85, 86,279.28 and 21,491.43

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Solution

The fourth proportional to 57,521.85, 86,279.28 and 21,491.43 is: 32,235.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,521.85 : 86,279.28 = 21,491.43 : x
  2. Step 2: Convert to fraction form
    57,521.85/86,279.28 = 21,491.43/x
  3. Step 3: Cross multiply
    57,521.85x = 86,279.28 × 21,491.43
  4. Step 4: Simplify right side
    57,521.85x = 1,854,264,702.43
  5. Step 5: Solve for x
    x = 1,854,264,702.43/57,521.85
  6. Step 6: Final answer
    x = 32,235.83

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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.