Home / 80,267.51-120,402.45-38,151.89

Finding the Fourth Proportional to 80,267.51, 120,402.45 and 38,151.89

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Solution

The fourth proportional to 80,267.51, 120,402.45 and 38,151.89 is: 57,228.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,267.51 : 120,402.45 = 38,151.89 : x
  2. Step 2: Convert to fraction form
    80,267.51/120,402.45 = 38,151.89/x
  3. Step 3: Cross multiply
    80,267.51x = 120,402.45 × 38,151.89
  4. Step 4: Simplify right side
    80,267.51x = 4,593,580,426.12
  5. Step 5: Solve for x
    x = 4,593,580,426.12/80,267.51
  6. Step 6: Final answer
    x = 57,228.39

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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.