Home / 81,177.72-112,024.88-45,367.72

Finding the Fourth Proportional to 81,177.72, 112,024.88 and 45,367.72

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Solution

The fourth proportional to 81,177.72, 112,024.88 and 45,367.72 is: 62,607.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,177.72 : 112,024.88 = 45,367.72 : x
  2. Step 2: Convert to fraction form
    81,177.72/112,024.88 = 45,367.72/x
  3. Step 3: Cross multiply
    81,177.72x = 112,024.88 × 45,367.72
  4. Step 4: Simplify right side
    81,177.72x = 5,082,313,388.87
  5. Step 5: Solve for x
    x = 5,082,313,388.87/81,177.72
  6. Step 6: Final answer
    x = 62,607.24

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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.