Home / 81,054.24-111,863.28-45,256.56

Finding the Fourth Proportional to 81,054.24, 111,863.28 and 45,256.56

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Solution

The fourth proportional to 81,054.24, 111,863.28 and 45,256.56 is: 62,458.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,054.24 : 111,863.28 = 45,256.56 : x
  2. Step 2: Convert to fraction form
    81,054.24/111,863.28 = 45,256.56/x
  3. Step 3: Cross multiply
    81,054.24x = 111,863.28 × 45,256.56
  4. Step 4: Simplify right side
    81,054.24x = 5,062,547,243.12
  5. Step 5: Solve for x
    x = 5,062,547,243.12/81,054.24
  6. Step 6: Final answer
    x = 62,458.76

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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.