Home / 145,207.28-217,754.76-50,409.20

Finding the Fourth Proportional to 145,207.28, 217,754.76 and 50,409.20

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Solution

The fourth proportional to 145,207.28, 217,754.76 and 50,409.20 is: 75,594.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,207.28 : 217,754.76 = 50,409.20 : x
  2. Step 2: Convert to fraction form
    145,207.28/217,754.76 = 50,409.20/x
  3. Step 3: Cross multiply
    145,207.28x = 217,754.76 × 50,409.20
  4. Step 4: Simplify right side
    145,207.28x = 10,976,843,247.79
  5. Step 5: Solve for x
    x = 10,976,843,247.79/145,207.28
  6. Step 6: Final answer
    x = 75,594.30

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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.