Home / 80,424.79-120,638.05-24,265.40

Finding the Fourth Proportional to 80,424.79, 120,638.05 and 24,265.40

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Solution

The fourth proportional to 80,424.79, 120,638.05 and 24,265.40 is: 36,398.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,424.79 : 120,638.05 = 24,265.40 : x
  2. Step 2: Convert to fraction form
    80,424.79/120,638.05 = 24,265.40/x
  3. Step 3: Cross multiply
    80,424.79x = 120,638.05 × 24,265.40
  4. Step 4: Simplify right side
    80,424.79x = 2,927,330,011.11
  5. Step 5: Solve for x
    x = 2,927,330,011.11/80,424.79
  6. Step 6: Final answer
    x = 36,398.36

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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.