Home / 87,412.46-131,155.56-55,858.10

Finding the Fourth Proportional to 87,412.46, 131,155.56 and 55,858.10

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Solution

The fourth proportional to 87,412.46, 131,155.56 and 55,858.10 is: 83,810.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,412.46 : 131,155.56 = 55,858.10 : x
  2. Step 2: Convert to fraction form
    87,412.46/131,155.56 = 55,858.10/x
  3. Step 3: Cross multiply
    87,412.46x = 131,155.56 × 55,858.10
  4. Step 4: Simplify right side
    87,412.46x = 7,326,099,730.26
  5. Step 5: Solve for x
    x = 7,326,099,730.26/87,412.46
  6. Step 6: Final answer
    x = 83,810.71

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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.