Home / 81,148.91-121,617.32-58,735.08

Finding the Fourth Proportional to 81,148.91, 121,617.32 and 58,735.08

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Solution

The fourth proportional to 81,148.91, 121,617.32 and 58,735.08 is: 88,025.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,148.91 : 121,617.32 = 58,735.08 : x
  2. Step 2: Convert to fraction form
    81,148.91/121,617.32 = 58,735.08/x
  3. Step 3: Cross multiply
    81,148.91x = 121,617.32 × 58,735.08
  4. Step 4: Simplify right side
    81,148.91x = 7,143,202,725.91
  5. Step 5: Solve for x
    x = 7,143,202,725.91/81,148.91
  6. Step 6: Final answer
    x = 88,025.87

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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.