Home / 65,359.20-98,017.32-20,975.42

Finding the Fourth Proportional to 65,359.20, 98,017.32 and 20,975.42

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Solution

The fourth proportional to 65,359.20, 98,017.32 and 20,975.42 is: 31,456.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,359.20 : 98,017.32 = 20,975.42 : x
  2. Step 2: Convert to fraction form
    65,359.20/98,017.32 = 20,975.42/x
  3. Step 3: Cross multiply
    65,359.20x = 98,017.32 × 20,975.42
  4. Step 4: Simplify right side
    65,359.20x = 2,055,954,454.27
  5. Step 5: Solve for x
    x = 2,055,954,454.27/65,359.20
  6. Step 6: Final answer
    x = 31,456.24

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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.