Home / 52,785.27-78,781.46-45,637.89

Finding the Fourth Proportional to 52,785.27, 78,781.46 and 45,637.89

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Solution

The fourth proportional to 52,785.27, 78,781.46 and 45,637.89 is: 68,114.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,785.27 : 78,781.46 = 45,637.89 : x
  2. Step 2: Convert to fraction form
    52,785.27/78,781.46 = 45,637.89/x
  3. Step 3: Cross multiply
    52,785.27x = 78,781.46 × 45,637.89
  4. Step 4: Simplify right side
    52,785.27x = 3,595,419,377.33
  5. Step 5: Solve for x
    x = 3,595,419,377.33/52,785.27
  6. Step 6: Final answer
    x = 68,114.07

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.