Home / 65,850.28-98,781.36-21,465.52

Finding the Fourth Proportional to 65,850.28, 98,781.36 and 21,465.52

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Solution

The fourth proportional to 65,850.28, 98,781.36 and 21,465.52 is: 32,200.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,850.28 : 98,781.36 = 21,465.52 : x
  2. Step 2: Convert to fraction form
    65,850.28/98,781.36 = 21,465.52/x
  3. Step 3: Cross multiply
    65,850.28x = 98,781.36 × 21,465.52
  4. Step 4: Simplify right side
    65,850.28x = 2,120,393,258.71
  5. Step 5: Solve for x
    x = 2,120,393,258.71/65,850.28
  6. Step 6: Final answer
    x = 32,200.22

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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.