Home / 88,923.75-122,779.04-54,978.78

Finding the Fourth Proportional to 88,923.75, 122,779.04 and 54,978.78

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Solution

The fourth proportional to 88,923.75, 122,779.04 and 54,978.78 is: 75,910.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,923.75 : 122,779.04 = 54,978.78 : x
  2. Step 2: Convert to fraction form
    88,923.75/122,779.04 = 54,978.78/x
  3. Step 3: Cross multiply
    88,923.75x = 122,779.04 × 54,978.78
  4. Step 4: Simplify right side
    88,923.75x = 6,750,241,553.88
  5. Step 5: Solve for x
    x = 6,750,241,553.88/88,923.75
  6. Step 6: Final answer
    x = 75,910.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.