Home / 42,159.10-63,269.82-19,972.54

Finding the Fourth Proportional to 42,159.10, 63,269.82 and 19,972.54

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Solution

The fourth proportional to 42,159.10, 63,269.82 and 19,972.54 is: 29,973.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,159.10 : 63,269.82 = 19,972.54 : x
  2. Step 2: Convert to fraction form
    42,159.10/63,269.82 = 19,972.54/x
  3. Step 3: Cross multiply
    42,159.10x = 63,269.82 × 19,972.54
  4. Step 4: Simplify right side
    42,159.10x = 1,263,659,010.74
  5. Step 5: Solve for x
    x = 1,263,659,010.74/42,159.10
  6. Step 6: Final answer
    x = 29,973.58

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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.