Home / 40,390.90-60,581.56-10,811.02

Finding the Fourth Proportional to 40,390.90, 60,581.56 and 10,811.02

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Solution

The fourth proportional to 40,390.90, 60,581.56 and 10,811.02 is: 16,215.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,390.90 : 60,581.56 = 10,811.02 : x
  2. Step 2: Convert to fraction form
    40,390.90/60,581.56 = 10,811.02/x
  3. Step 3: Cross multiply
    40,390.90x = 60,581.56 × 10,811.02
  4. Step 4: Simplify right side
    40,390.90x = 654,948,456.79
  5. Step 5: Solve for x
    x = 654,948,456.79/40,390.90
  6. Step 6: Final answer
    x = 16,215.25

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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.