Home / 40,139.06-60,188.10-13,475.90

Finding the Fourth Proportional to 40,139.06, 60,188.10 and 13,475.90

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Solution

The fourth proportional to 40,139.06, 60,188.10 and 13,475.90 is: 20,206.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,139.06 : 60,188.10 = 13,475.90 : x
  2. Step 2: Convert to fraction form
    40,139.06/60,188.10 = 13,475.90/x
  3. Step 3: Cross multiply
    40,139.06x = 60,188.10 × 13,475.90
  4. Step 4: Simplify right side
    40,139.06x = 811,088,816.79
  5. Step 5: Solve for x
    x = 811,088,816.79/40,139.06
  6. Step 6: Final answer
    x = 20,206.97

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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.