Home / 86,861.56-130,311.47-49,439.25

Finding the Fourth Proportional to 86,861.56, 130,311.47 and 49,439.25

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Solution

The fourth proportional to 86,861.56, 130,311.47 and 49,439.25 is: 74,169.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,861.56 : 130,311.47 = 49,439.25 : x
  2. Step 2: Convert to fraction form
    86,861.56/130,311.47 = 49,439.25/x
  3. Step 3: Cross multiply
    86,861.56x = 130,311.47 × 49,439.25
  4. Step 4: Simplify right side
    86,861.56x = 6,442,501,343.20
  5. Step 5: Solve for x
    x = 6,442,501,343.20/86,861.56
  6. Step 6: Final answer
    x = 74,169.76

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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.