Home / 65,480.64-90,358.98-38,617.02

Finding the Fourth Proportional to 65,480.64, 90,358.98 and 38,617.02

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Solution

The fourth proportional to 65,480.64, 90,358.98 and 38,617.02 is: 53,288.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,480.64 : 90,358.98 = 38,617.02 : x
  2. Step 2: Convert to fraction form
    65,480.64/90,358.98 = 38,617.02/x
  3. Step 3: Cross multiply
    65,480.64x = 90,358.98 × 38,617.02
  4. Step 4: Simplify right side
    65,480.64x = 3,489,394,537.84
  5. Step 5: Solve for x
    x = 3,489,394,537.84/65,480.64
  6. Step 6: Final answer
    x = 53,288.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.