Home / 83,439.08-125,144.77-30,120.83

Finding the Fourth Proportional to 83,439.08, 125,144.77 and 30,120.83

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Solution

The fourth proportional to 83,439.08, 125,144.77 and 30,120.83 is: 45,176.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,439.08 : 125,144.77 = 30,120.83 : x
  2. Step 2: Convert to fraction form
    83,439.08/125,144.77 = 30,120.83/x
  3. Step 3: Cross multiply
    83,439.08x = 125,144.77 × 30,120.83
  4. Step 4: Simplify right side
    83,439.08x = 3,769,464,580.12
  5. Step 5: Solve for x
    x = 3,769,464,580.12/83,439.08
  6. Step 6: Final answer
    x = 45,176.25

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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.