Home / 81,037.31-111,839.26-45,230.65

Finding the Fourth Proportional to 81,037.31, 111,839.26 and 45,230.65

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Solution

The fourth proportional to 81,037.31, 111,839.26 and 45,230.65 is: 62,422.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,037.31 : 111,839.26 = 45,230.65 : x
  2. Step 2: Convert to fraction form
    81,037.31/111,839.26 = 45,230.65/x
  3. Step 3: Cross multiply
    81,037.31x = 111,839.26 × 45,230.65
  4. Step 4: Simplify right side
    81,037.31x = 5,058,562,425.32
  5. Step 5: Solve for x
    x = 5,058,562,425.32/81,037.31
  6. Step 6: Final answer
    x = 62,422.64

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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.