Home / 65,579.85-90,497.55-38,731.02

Finding the Fourth Proportional to 65,579.85, 90,497.55 and 38,731.02

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Solution

The fourth proportional to 65,579.85, 90,497.55 and 38,731.02 is: 53,447.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,579.85 : 90,497.55 = 38,731.02 : x
  2. Step 2: Convert to fraction form
    65,579.85/90,497.55 = 38,731.02/x
  3. Step 3: Cross multiply
    65,579.85x = 90,497.55 × 38,731.02
  4. Step 4: Simplify right side
    65,579.85x = 3,505,062,419.00
  5. Step 5: Solve for x
    x = 3,505,062,419.00/65,579.85
  6. Step 6: Final answer
    x = 53,447.25

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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.