Home / 60,742.20-91,113.30-54,175.80

Finding the Fourth Proportional to 60,742.20, 91,113.30 and 54,175.80

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Solution

The fourth proportional to 60,742.20, 91,113.30 and 54,175.80 is: 81,263.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,742.20 : 91,113.30 = 54,175.80 : x
  2. Step 2: Convert to fraction form
    60,742.20/91,113.30 = 54,175.80/x
  3. Step 3: Cross multiply
    60,742.20x = 91,113.30 × 54,175.80
  4. Step 4: Simplify right side
    60,742.20x = 4,936,135,918.14
  5. Step 5: Solve for x
    x = 4,936,135,918.14/60,742.20
  6. Step 6: Final answer
    x = 81,263.70

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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.