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Finding the Fourth Proportional to 63,999.90, 95,999.85 and 40,652.70

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Solution

The fourth proportional to 63,999.90, 95,999.85 and 40,652.70 is: 60,979.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,999.90 : 95,999.85 = 40,652.70 : x
  2. Step 2: Convert to fraction form
    63,999.90/95,999.85 = 40,652.70/x
  3. Step 3: Cross multiply
    63,999.90x = 95,999.85 × 40,652.70
  4. Step 4: Simplify right side
    63,999.90x = 3,902,653,102.10
  5. Step 5: Solve for x
    x = 3,902,653,102.10/63,999.90
  6. Step 6: Final answer
    x = 60,979.05

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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.