Home / 40,490.13-60,735.18-20,756.10

Finding the Fourth Proportional to 40,490.13, 60,735.18 and 20,756.10

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Solution

The fourth proportional to 40,490.13, 60,735.18 and 20,756.10 is: 31,134.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,490.13 : 60,735.18 = 20,756.10 : x
  2. Step 2: Convert to fraction form
    40,490.13/60,735.18 = 20,756.10/x
  3. Step 3: Cross multiply
    40,490.13x = 60,735.18 × 20,756.10
  4. Step 4: Simplify right side
    40,490.13x = 1,260,625,469.60
  5. Step 5: Solve for x
    x = 1,260,625,469.60/40,490.13
  6. Step 6: Final answer
    x = 31,134.14

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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.