Home / 86,914.20-130,346.19-39,502.88

Finding the Fourth Proportional to 86,914.20, 130,346.19 and 39,502.88

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Solution

The fourth proportional to 86,914.20, 130,346.19 and 39,502.88 is: 59,242.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,914.20 : 130,346.19 = 39,502.88 : x
  2. Step 2: Convert to fraction form
    86,914.20/130,346.19 = 39,502.88/x
  3. Step 3: Cross multiply
    86,914.20x = 130,346.19 × 39,502.88
  4. Step 4: Simplify right side
    86,914.20x = 5,149,049,250.30
  5. Step 5: Solve for x
    x = 5,149,049,250.30/86,914.20
  6. Step 6: Final answer
    x = 59,242.90

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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.