Home / 63,428.45-95,153.60-21,312.56

Finding the Fourth Proportional to 63,428.45, 95,153.60 and 21,312.56

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Solution

The fourth proportional to 63,428.45, 95,153.60 and 21,312.56 is: 31,972.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,428.45 : 95,153.60 = 21,312.56 : x
  2. Step 2: Convert to fraction form
    63,428.45/95,153.60 = 21,312.56/x
  3. Step 3: Cross multiply
    63,428.45x = 95,153.60 × 21,312.56
  4. Step 4: Simplify right side
    63,428.45x = 2,027,967,100.38
  5. Step 5: Solve for x
    x = 2,027,967,100.38/63,428.45
  6. Step 6: Final answer
    x = 31,972.52

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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.