Home / 56,242.18-84,375.63-21,181.78

Finding the Fourth Proportional to 56,242.18, 84,375.63 and 21,181.78

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Solution

The fourth proportional to 56,242.18, 84,375.63 and 21,181.78 is: 31,777.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,242.18 : 84,375.63 = 21,181.78 : x
  2. Step 2: Convert to fraction form
    56,242.18/84,375.63 = 21,181.78/x
  3. Step 3: Cross multiply
    56,242.18x = 84,375.63 × 21,181.78
  4. Step 4: Simplify right side
    56,242.18x = 1,787,226,032.02
  5. Step 5: Solve for x
    x = 1,787,226,032.02/56,242.18
  6. Step 6: Final answer
    x = 31,777.32

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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.