Home / 80,462.40-120,654.63-47,193.36

Finding the Fourth Proportional to 80,462.40, 120,654.63 and 47,193.36

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Solution

The fourth proportional to 80,462.40, 120,654.63 and 47,193.36 is: 70,767.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,462.40 : 120,654.63 = 47,193.36 : x
  2. Step 2: Convert to fraction form
    80,462.40/120,654.63 = 47,193.36/x
  3. Step 3: Cross multiply
    80,462.40x = 120,654.63 × 47,193.36
  4. Step 4: Simplify right side
    80,462.40x = 5,694,097,389.26
  5. Step 5: Solve for x
    x = 5,694,097,389.26/80,462.40
  6. Step 6: Final answer
    x = 70,767.18

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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.