Home / 86,769.40-130,197.30-49,358.20

Finding the Fourth Proportional to 86,769.40, 130,197.30 and 49,358.20

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Solution

The fourth proportional to 86,769.40, 130,197.30 and 49,358.20 is: 74,061.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,769.40 : 130,197.30 = 49,358.20 : x
  2. Step 2: Convert to fraction form
    86,769.40/130,197.30 = 49,358.20/x
  3. Step 3: Cross multiply
    86,769.40x = 130,197.30 × 49,358.20
  4. Step 4: Simplify right side
    86,769.40x = 6,426,304,372.86
  5. Step 5: Solve for x
    x = 6,426,304,372.86/86,769.40
  6. Step 6: Final answer
    x = 74,061.87

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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.