Home / 52,295.31-78,442.97-21,152.43

Finding the Fourth Proportional to 52,295.31, 78,442.97 and 21,152.43

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Solution

The fourth proportional to 52,295.31, 78,442.97 and 21,152.43 is: 31,728.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,295.31 : 78,442.97 = 21,152.43 : x
  2. Step 2: Convert to fraction form
    52,295.31/78,442.97 = 21,152.43/x
  3. Step 3: Cross multiply
    52,295.31x = 78,442.97 × 21,152.43
  4. Step 4: Simplify right side
    52,295.31x = 1,659,259,326.15
  5. Step 5: Solve for x
    x = 1,659,259,326.15/52,295.31
  6. Step 6: Final answer
    x = 31,728.65

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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.