Home / 40,139.31-60,209.10-10,554.66

Finding the Fourth Proportional to 40,139.31, 60,209.10 and 10,554.66

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Solution

The fourth proportional to 40,139.31, 60,209.10 and 10,554.66 is: 15,832.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,139.31 : 60,209.10 = 10,554.66 : x
  2. Step 2: Convert to fraction form
    40,139.31/60,209.10 = 10,554.66/x
  3. Step 3: Cross multiply
    40,139.31x = 60,209.10 × 10,554.66
  4. Step 4: Simplify right side
    40,139.31x = 635,486,579.41
  5. Step 5: Solve for x
    x = 635,486,579.41/40,139.31
  6. Step 6: Final answer
    x = 15,832.03

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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.