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Finding the Fourth Proportional to 63,782.64, 88,012.80 and 35,481.60

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Solution

The fourth proportional to 63,782.64, 88,012.80 and 35,481.60 is: 48,960.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,782.64 : 88,012.80 = 35,481.60 : x
  2. Step 2: Convert to fraction form
    63,782.64/88,012.80 = 35,481.60/x
  3. Step 3: Cross multiply
    63,782.64x = 88,012.80 × 35,481.60
  4. Step 4: Simplify right side
    63,782.64x = 3,122,834,964.48
  5. Step 5: Solve for x
    x = 3,122,834,964.48/63,782.64
  6. Step 6: Final answer
    x = 48,960.58

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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.