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Finding the Fourth Proportional to 65,740.32, 98,627.04 and 18,992.88

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Solution

The fourth proportional to 65,740.32, 98,627.04 and 18,992.88 is: 28,494.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,740.32 : 98,627.04 = 18,992.88 : x
  2. Step 2: Convert to fraction form
    65,740.32/98,627.04 = 18,992.88/x
  3. Step 3: Cross multiply
    65,740.32x = 98,627.04 × 18,992.88
  4. Step 4: Simplify right side
    65,740.32x = 1,873,211,535.48
  5. Step 5: Solve for x
    x = 1,873,211,535.48/65,740.32
  6. Step 6: Final answer
    x = 28,494.10

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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.