Home / 86,769.20-130,197.36-34,216.40

Finding the Fourth Proportional to 86,769.20, 130,197.36 and 34,216.40

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Solution

The fourth proportional to 86,769.20, 130,197.36 and 34,216.40 is: 51,341.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,769.20 : 130,197.36 = 34,216.40 : x
  2. Step 2: Convert to fraction form
    86,769.20/130,197.36 = 34,216.40/x
  3. Step 3: Cross multiply
    86,769.20x = 130,197.36 × 34,216.40
  4. Step 4: Simplify right side
    86,769.20x = 4,454,884,948.70
  5. Step 5: Solve for x
    x = 4,454,884,948.70/86,769.20
  6. Step 6: Final answer
    x = 51,341.78

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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.