Home / 84,209.09-126,319.10-28,046.93

Finding the Fourth Proportional to 84,209.09, 126,319.10 and 28,046.93

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Solution

The fourth proportional to 84,209.09, 126,319.10 and 28,046.93 is: 42,072.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,209.09 : 126,319.10 = 28,046.93 : x
  2. Step 2: Convert to fraction form
    84,209.09/126,319.10 = 28,046.93/x
  3. Step 3: Cross multiply
    84,209.09x = 126,319.10 × 28,046.93
  4. Step 4: Simplify right side
    84,209.09x = 3,542,862,183.53
  5. Step 5: Solve for x
    x = 3,542,862,183.53/84,209.09
  6. Step 6: Final answer
    x = 42,072.21

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1.5x scale

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.