Home / 83,430.30-125,181.45-48,399.90

Finding the Fourth Proportional to 83,430.30, 125,181.45 and 48,399.90

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Solution

The fourth proportional to 83,430.30, 125,181.45 and 48,399.90 is: 72,620.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,430.30 : 125,181.45 = 48,399.90 : x
  2. Step 2: Convert to fraction form
    83,430.30/125,181.45 = 48,399.90/x
  3. Step 3: Cross multiply
    83,430.30x = 125,181.45 × 48,399.90
  4. Step 4: Simplify right side
    83,430.30x = 6,058,769,661.86
  5. Step 5: Solve for x
    x = 6,058,769,661.86/83,430.30
  6. Step 6: Final answer
    x = 72,620.73

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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.