Home / 52,964.78-79,447.10-13,521.90

Finding the Fourth Proportional to 52,964.78, 79,447.10 and 13,521.90

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Solution

The fourth proportional to 52,964.78, 79,447.10 and 13,521.90 is: 20,282.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,964.78 : 79,447.10 = 13,521.90 : x
  2. Step 2: Convert to fraction form
    52,964.78/79,447.10 = 13,521.90/x
  3. Step 3: Cross multiply
    52,964.78x = 79,447.10 × 13,521.90
  4. Step 4: Simplify right side
    52,964.78x = 1,074,275,741.49
  5. Step 5: Solve for x
    x = 1,074,275,741.49/52,964.78
  6. Step 6: Final answer
    x = 20,282.83

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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.