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Finding the Fourth Proportional to 79,999.52, 110,420.62 and 49,767.68

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Solution

The fourth proportional to 79,999.52, 110,420.62 and 49,767.68 is: 68,692.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,999.52 : 110,420.62 = 49,767.68 : x
  2. Step 2: Convert to fraction form
    79,999.52/110,420.62 = 49,767.68/x
  3. Step 3: Cross multiply
    79,999.52x = 110,420.62 × 49,767.68
  4. Step 4: Simplify right side
    79,999.52x = 5,495,378,233.19
  5. Step 5: Solve for x
    x = 5,495,378,233.19/79,999.52
  6. Step 6: Final answer
    x = 68,692.64

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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.