Home / 40,727.15-61,100.91-28,742.70

Finding the Fourth Proportional to 40,727.15, 61,100.91 and 28,742.70

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Solution

The fourth proportional to 40,727.15, 61,100.91 and 28,742.70 is: 43,121.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,727.15 : 61,100.91 = 28,742.70 : x
  2. Step 2: Convert to fraction form
    40,727.15/61,100.91 = 28,742.70/x
  3. Step 3: Cross multiply
    40,727.15x = 61,100.91 × 28,742.70
  4. Step 4: Simplify right side
    40,727.15x = 1,756,205,247.20
  5. Step 5: Solve for x
    x = 1,756,205,247.20/40,727.15
  6. Step 6: Final answer
    x = 43,121.24

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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.