Home / 40,987.88-61,475.70-11,402.66

Finding the Fourth Proportional to 40,987.88, 61,475.70 and 11,402.66

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Solution

The fourth proportional to 40,987.88, 61,475.70 and 11,402.66 is: 17,102.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,987.88 : 61,475.70 = 11,402.66 : x
  2. Step 2: Convert to fraction form
    40,987.88/61,475.70 = 11,402.66/x
  3. Step 3: Cross multiply
    40,987.88x = 61,475.70 × 11,402.66
  4. Step 4: Simplify right side
    40,987.88x = 700,986,505.36
  5. Step 5: Solve for x
    x = 700,986,505.36/40,987.88
  6. Step 6: Final answer
    x = 17,102.29

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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.