Home / 87,845.55-121,226.90-47,559.32

Finding the Fourth Proportional to 87,845.55, 121,226.90 and 47,559.32

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Solution

The fourth proportional to 87,845.55, 121,226.90 and 47,559.32 is: 65,631.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,845.55 : 121,226.90 = 47,559.32 : x
  2. Step 2: Convert to fraction form
    87,845.55/121,226.90 = 47,559.32/x
  3. Step 3: Cross multiply
    87,845.55x = 121,226.90 × 47,559.32
  4. Step 4: Simplify right side
    87,845.55x = 5,765,468,929.71
  5. Step 5: Solve for x
    x = 5,765,468,929.71/87,845.55
  6. Step 6: Final answer
    x = 65,631.88

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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.