Home / 78,567.10-108,549.44-54,799.87

Finding the Fourth Proportional to 78,567.10, 108,549.44 and 54,799.87

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Solution

The fourth proportional to 78,567.10, 108,549.44 and 54,799.87 is: 75,712.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,567.10 : 108,549.44 = 54,799.87 : x
  2. Step 2: Convert to fraction form
    78,567.10/108,549.44 = 54,799.87/x
  3. Step 3: Cross multiply
    78,567.10x = 108,549.44 × 54,799.87
  4. Step 4: Simplify right side
    78,567.10x = 5,948,494,926.57
  5. Step 5: Solve for x
    x = 5,948,494,926.57/78,567.10
  6. Step 6: Final answer
    x = 75,712.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.