Home / 52,443.28-78,663.48-12,999.52

Finding the Fourth Proportional to 52,443.28, 78,663.48 and 12,999.52

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Solution

The fourth proportional to 52,443.28, 78,663.48 and 12,999.52 is: 19,498.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,443.28 : 78,663.48 = 12,999.52 : x
  2. Step 2: Convert to fraction form
    52,443.28/78,663.48 = 12,999.52/x
  3. Step 3: Cross multiply
    52,443.28x = 78,663.48 × 12,999.52
  4. Step 4: Simplify right side
    52,443.28x = 1,022,587,481.53
  5. Step 5: Solve for x
    x = 1,022,587,481.53/52,443.28
  6. Step 6: Final answer
    x = 19,498.92

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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.