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Finding the Fourth Proportional to 73,419.60, 109,837.80 and 63,667.20

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Solution

The fourth proportional to 73,419.60, 109,837.80 and 63,667.20 is: 95,247.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,419.60 : 109,837.80 = 63,667.20 : x
  2. Step 2: Convert to fraction form
    73,419.60/109,837.80 = 63,667.20/x
  3. Step 3: Cross multiply
    73,419.60x = 109,837.80 × 63,667.20
  4. Step 4: Simplify right side
    73,419.60x = 6,993,065,180.16
  5. Step 5: Solve for x
    x = 6,993,065,180.16/73,419.60
  6. Step 6: Final answer
    x = 95,247.93

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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.