Home / 83,403.20-125,117.75-28,012.16

Finding the Fourth Proportional to 83,403.20, 125,117.75 and 28,012.16

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Solution

The fourth proportional to 83,403.20, 125,117.75 and 28,012.16 is: 42,022.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,403.20 : 125,117.75 = 28,012.16 : x
  2. Step 2: Convert to fraction form
    83,403.20/125,117.75 = 28,012.16/x
  3. Step 3: Cross multiply
    83,403.20x = 125,117.75 × 28,012.16
  4. Step 4: Simplify right side
    83,403.20x = 3,504,818,431.84
  5. Step 5: Solve for x
    x = 3,504,818,431.84/83,403.20
  6. Step 6: Final answer
    x = 42,022.59

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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.