Home / 52,180.53-78,269.25-45,139.75

Finding the Fourth Proportional to 52,180.53, 78,269.25 and 45,139.75

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Solution

The fourth proportional to 52,180.53, 78,269.25 and 45,139.75 is: 67,708.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,180.53 : 78,269.25 = 45,139.75 : x
  2. Step 2: Convert to fraction form
    52,180.53/78,269.25 = 45,139.75/x
  3. Step 3: Cross multiply
    52,180.53x = 78,269.25 × 45,139.75
  4. Step 4: Simplify right side
    52,180.53x = 3,533,054,306.25
  5. Step 5: Solve for x
    x = 3,533,054,306.25/52,180.53
  6. Step 6: Final answer
    x = 67,708.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.