Home / 81,041.15-111,836.92-45,231.15

Finding the Fourth Proportional to 81,041.15, 111,836.92 and 45,231.15

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Solution

The fourth proportional to 81,041.15, 111,836.92 and 45,231.15 is: 62,419.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,041.15 : 111,836.92 = 45,231.15 : x
  2. Step 2: Convert to fraction form
    81,041.15/111,836.92 = 45,231.15/x
  3. Step 3: Cross multiply
    81,041.15x = 111,836.92 × 45,231.15
  4. Step 4: Simplify right side
    81,041.15x = 5,058,512,504.06
  5. Step 5: Solve for x
    x = 5,058,512,504.06/81,041.15
  6. Step 6: Final answer
    x = 62,419.06

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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.