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Finding the Fourth Proportional to 73,999.30, 110,998.95 and 65,445.70

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Solution

The fourth proportional to 73,999.30, 110,998.95 and 65,445.70 is: 98,168.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,999.30 : 110,998.95 = 65,445.70 : x
  2. Step 2: Convert to fraction form
    73,999.30/110,998.95 = 65,445.70/x
  3. Step 3: Cross multiply
    73,999.30x = 110,998.95 × 65,445.70
  4. Step 4: Simplify right side
    73,999.30x = 7,264,403,982.02
  5. Step 5: Solve for x
    x = 7,264,403,982.02/73,999.30
  6. Step 6: Final answer
    x = 98,168.55

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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.