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Finding the Fourth Proportional to 80,133.68, 120,259.58 and 38,013.89

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Solution

The fourth proportional to 80,133.68, 120,259.58 and 38,013.89 is: 57,048.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,133.68 : 120,259.58 = 38,013.89 : x
  2. Step 2: Convert to fraction form
    80,133.68/120,259.58 = 38,013.89/x
  3. Step 3: Cross multiply
    80,133.68x = 120,259.58 × 38,013.89
  4. Step 4: Simplify right side
    80,133.68x = 4,571,533,654.20
  5. Step 5: Solve for x
    x = 4,571,533,654.20/80,133.68
  6. Step 6: Final answer
    x = 57,048.85

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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.