Home / 56,819.52-85,230-21,761.28

Finding the Fourth Proportional to 56,819.52, 85,230 and 21,761.28

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Solution

The fourth proportional to 56,819.52, 85,230 and 21,761.28 is: 32,642.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,819.52 : 85,230 = 21,761.28 : x
  2. Step 2: Convert to fraction form
    56,819.52/85,230 = 21,761.28/x
  3. Step 3: Cross multiply
    56,819.52x = 85,230 × 21,761.28
  4. Step 4: Simplify right side
    56,819.52x = 1,854,713,894.40
  5. Step 5: Solve for x
    x = 1,854,713,894.40/56,819.52
  6. Step 6: Final answer
    x = 32,642.20

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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.