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Finding the Fourth Proportional to 65,956.40, 98,992.20 and 52,775.60

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Solution

The fourth proportional to 65,956.40, 98,992.20 and 52,775.60 is: 79,209.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,956.40 : 98,992.20 = 52,775.60 : x
  2. Step 2: Convert to fraction form
    65,956.40/98,992.20 = 52,775.60/x
  3. Step 3: Cross multiply
    65,956.40x = 98,992.20 × 52,775.60
  4. Step 4: Simplify right side
    65,956.40x = 5,224,372,750.32
  5. Step 5: Solve for x
    x = 5,224,372,750.32/65,956.40
  6. Step 6: Final answer
    x = 79,209.49

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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.