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Finding the Fourth Proportional to 63,780.53, 88,005.20 and 35,486.21

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Solution

The fourth proportional to 63,780.53, 88,005.20 and 35,486.21 is: 48,964.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,780.53 : 88,005.20 = 35,486.21 : x
  2. Step 2: Convert to fraction form
    63,780.53/88,005.20 = 35,486.21/x
  3. Step 3: Cross multiply
    63,780.53x = 88,005.20 × 35,486.21
  4. Step 4: Simplify right side
    63,780.53x = 3,122,970,390.83
  5. Step 5: Solve for x
    x = 3,122,970,390.83/63,780.53
  6. Step 6: Final answer
    x = 48,964.33

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1.5x scale

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.