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Finding the Fourth Proportional to 63,865.50, 88,217.60 and 51,810.78

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Solution

The fourth proportional to 63,865.50, 88,217.60 and 51,810.78 is: 71,566.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,865.50 : 88,217.60 = 51,810.78 : x
  2. Step 2: Convert to fraction form
    63,865.50/88,217.60 = 51,810.78/x
  3. Step 3: Cross multiply
    63,865.50x = 88,217.60 × 51,810.78
  4. Step 4: Simplify right side
    63,865.50x = 4,570,622,665.73
  5. Step 5: Solve for x
    x = 4,570,622,665.73/63,865.50
  6. Step 6: Final answer
    x = 71,566.38

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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.