Home / 80,289.47-120,429.53-24,128.39

Finding the Fourth Proportional to 80,289.47, 120,429.53 and 24,128.39

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Solution

The fourth proportional to 80,289.47, 120,429.53 and 24,128.39 is: 36,191.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,289.47 : 120,429.53 = 24,128.39 : x
  2. Step 2: Convert to fraction form
    80,289.47/120,429.53 = 24,128.39/x
  3. Step 3: Cross multiply
    80,289.47x = 120,429.53 × 24,128.39
  4. Step 4: Simplify right side
    80,289.47x = 2,905,770,546.71
  5. Step 5: Solve for x
    x = 2,905,770,546.71/80,289.47
  6. Step 6: Final answer
    x = 36,191.18

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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.