Home / 81,036.72-111,836.28-45,233.72

Finding the Fourth Proportional to 81,036.72, 111,836.28 and 45,233.72

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Solution

The fourth proportional to 81,036.72, 111,836.28 and 45,233.72 is: 62,425.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,036.72 : 111,836.28 = 45,233.72 : x
  2. Step 2: Convert to fraction form
    81,036.72/111,836.28 = 45,233.72/x
  3. Step 3: Cross multiply
    81,036.72x = 111,836.28 × 45,233.72
  4. Step 4: Simplify right side
    81,036.72x = 5,058,770,975.36
  5. Step 5: Solve for x
    x = 5,058,770,975.36/81,036.72
  6. Step 6: Final answer
    x = 62,425.66

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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.