Home / 84,381.64-126,430.20-50,999.92

Finding the Fourth Proportional to 84,381.64, 126,430.20 and 50,999.92

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Solution

The fourth proportional to 84,381.64, 126,430.20 and 50,999.92 is: 76,413.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,381.64 : 126,430.20 = 50,999.92 : x
  2. Step 2: Convert to fraction form
    84,381.64/126,430.20 = 50,999.92/x
  3. Step 3: Cross multiply
    84,381.64x = 126,430.20 × 50,999.92
  4. Step 4: Simplify right side
    84,381.64x = 6,447,930,085.58
  5. Step 5: Solve for x
    x = 6,447,930,085.58/84,381.64
  6. Step 6: Final answer
    x = 76,413.90

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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.