Home / 52,815.31-79,223.14-13,372.40

Finding the Fourth Proportional to 52,815.31, 79,223.14 and 13,372.40

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Solution

The fourth proportional to 52,815.31, 79,223.14 and 13,372.40 is: 20,058.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,815.31 : 79,223.14 = 13,372.40 : x
  2. Step 2: Convert to fraction form
    52,815.31/79,223.14 = 13,372.40/x
  3. Step 3: Cross multiply
    52,815.31x = 79,223.14 × 13,372.40
  4. Step 4: Simplify right side
    52,815.31x = 1,059,403,517.34
  5. Step 5: Solve for x
    x = 1,059,403,517.34/52,815.31
  6. Step 6: Final answer
    x = 20,058.65

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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.