Home / 52,566.90-78,799.32-20,967.78

Finding the Fourth Proportional to 52,566.90, 78,799.32 and 20,967.78

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Solution

The fourth proportional to 52,566.90, 78,799.32 and 20,967.78 is: 31,431.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,566.90 : 78,799.32 = 20,967.78 : x
  2. Step 2: Convert to fraction form
    52,566.90/78,799.32 = 20,967.78/x
  3. Step 3: Cross multiply
    52,566.90x = 78,799.32 × 20,967.78
  4. Step 4: Simplify right side
    52,566.90x = 1,652,246,805.91
  5. Step 5: Solve for x
    x = 1,652,246,805.91/52,566.90
  6. Step 6: Final answer
    x = 31,431.32

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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.