Home / 80,289.97-120,430.27-24,128.89

Finding the Fourth Proportional to 80,289.97, 120,430.27 and 24,128.89

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Solution

The fourth proportional to 80,289.97, 120,430.27 and 24,128.89 is: 36,191.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,289.97 : 120,430.27 = 24,128.89 : x
  2. Step 2: Convert to fraction form
    80,289.97/120,430.27 = 24,128.89/x
  3. Step 3: Cross multiply
    80,289.97x = 120,430.27 × 24,128.89
  4. Step 4: Simplify right side
    80,289.97x = 2,905,848,737.50
  5. Step 5: Solve for x
    x = 2,905,848,737.50/80,289.97
  6. Step 6: Final answer
    x = 36,191.93

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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.