Home / 81,064.38-111,864.20-45,256.64

Finding the Fourth Proportional to 81,064.38, 111,864.20 and 45,256.64

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Solution

The fourth proportional to 81,064.38, 111,864.20 and 45,256.64 is: 62,451.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,064.38 : 111,864.20 = 45,256.64 : x
  2. Step 2: Convert to fraction form
    81,064.38/111,864.20 = 45,256.64/x
  3. Step 3: Cross multiply
    81,064.38x = 111,864.20 × 45,256.64
  4. Step 4: Simplify right side
    81,064.38x = 5,062,597,828.29
  5. Step 5: Solve for x
    x = 5,062,597,828.29/81,064.38
  6. Step 6: Final answer
    x = 62,451.57

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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.