Home / 71,856.80-99,165.44-40,025.69

Finding the Fourth Proportional to 71,856.80, 99,165.44 and 40,025.69

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Solution

The fourth proportional to 71,856.80, 99,165.44 and 40,025.69 is: 55,237.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,856.80 : 99,165.44 = 40,025.69 : x
  2. Step 2: Convert to fraction form
    71,856.80/99,165.44 = 40,025.69/x
  3. Step 3: Cross multiply
    71,856.80x = 99,165.44 × 40,025.69
  4. Step 4: Simplify right side
    71,856.80x = 3,969,164,464.20
  5. Step 5: Solve for x
    x = 3,969,164,464.20/71,856.80
  6. Step 6: Final answer
    x = 55,237.15

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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.