Home / 52,766.34-79,142.19-13,321.11

Finding the Fourth Proportional to 52,766.34, 79,142.19 and 13,321.11

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Solution

The fourth proportional to 52,766.34, 79,142.19 and 13,321.11 is: 19,979.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,766.34 : 79,142.19 = 13,321.11 : x
  2. Step 2: Convert to fraction form
    52,766.34/79,142.19 = 13,321.11/x
  3. Step 3: Cross multiply
    52,766.34x = 79,142.19 × 13,321.11
  4. Step 4: Simplify right side
    52,766.34x = 1,054,261,818.63
  5. Step 5: Solve for x
    x = 1,054,261,818.63/52,766.34
  6. Step 6: Final answer
    x = 19,979.82

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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.