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Finding the Fourth Proportional to 63,991.28, 88,307.70 and 35,697

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Solution

The fourth proportional to 63,991.28, 88,307.70 and 35,697 is: 49,261.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,991.28 : 88,307.70 = 35,697 : x
  2. Step 2: Convert to fraction form
    63,991.28/88,307.70 = 35,697/x
  3. Step 3: Cross multiply
    63,991.28x = 88,307.70 × 35,697
  4. Step 4: Simplify right side
    63,991.28x = 3,152,319,966.90
  5. Step 5: Solve for x
    x = 3,152,319,966.90/63,991.28
  6. Step 6: Final answer
    x = 49,261.71

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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.