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Finding the Fourth Proportional to 51,999.85, 77,999.78 and 25,708.65

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Solution

The fourth proportional to 51,999.85, 77,999.78 and 25,708.65 is: 38,562.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,999.85 : 77,999.78 = 25,708.65 : x
  2. Step 2: Convert to fraction form
    51,999.85/77,999.78 = 25,708.65/x
  3. Step 3: Cross multiply
    51,999.85x = 77,999.78 × 25,708.65
  4. Step 4: Simplify right side
    51,999.85x = 2,005,268,915.55
  5. Step 5: Solve for x
    x = 2,005,268,915.55/51,999.85
  6. Step 6: Final answer
    x = 38,562.98

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1.5x scale

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.