Home / 42,540.11-63,838.75-17,580.12

Finding the Fourth Proportional to 42,540.11, 63,838.75 and 17,580.12

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Solution

The fourth proportional to 42,540.11, 63,838.75 and 17,580.12 is: 26,381.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,540.11 : 63,838.75 = 17,580.12 : x
  2. Step 2: Convert to fraction form
    42,540.11/63,838.75 = 17,580.12/x
  3. Step 3: Cross multiply
    42,540.11x = 63,838.75 × 17,580.12
  4. Step 4: Simplify right side
    42,540.11x = 1,122,292,885.65
  5. Step 5: Solve for x
    x = 1,122,292,885.65/42,540.11
  6. Step 6: Final answer
    x = 26,381.99

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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.