Home / 65,419.20-98,070.48-54,416.16

Finding the Fourth Proportional to 65,419.20, 98,070.48 and 54,416.16

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Solution

The fourth proportional to 65,419.20, 98,070.48 and 54,416.16 is: 81,575.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,419.20 : 98,070.48 = 54,416.16 : x
  2. Step 2: Convert to fraction form
    65,419.20/98,070.48 = 54,416.16/x
  3. Step 3: Cross multiply
    65,419.20x = 98,070.48 × 54,416.16
  4. Step 4: Simplify right side
    65,419.20x = 5,336,618,930.96
  5. Step 5: Solve for x
    x = 5,336,618,930.96/65,419.20
  6. Step 6: Final answer
    x = 81,575.73

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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.