Home / 86,439.20-119,275.26-48,189.38

Finding the Fourth Proportional to 86,439.20, 119,275.26 and 48,189.38

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Solution

The fourth proportional to 86,439.20, 119,275.26 and 48,189.38 is: 66,495.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,439.20 : 119,275.26 = 48,189.38 : x
  2. Step 2: Convert to fraction form
    86,439.20/119,275.26 = 48,189.38/x
  3. Step 3: Cross multiply
    86,439.20x = 119,275.26 × 48,189.38
  4. Step 4: Simplify right side
    86,439.20x = 5,747,800,232.36
  5. Step 5: Solve for x
    x = 5,747,800,232.36/86,439.20
  6. Step 6: Final answer
    x = 66,495.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.