Home / 65,579.85-90,497.57-38,731.01

Finding the Fourth Proportional to 65,579.85, 90,497.57 and 38,731.01

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Solution

The fourth proportional to 65,579.85, 90,497.57 and 38,731.01 is: 53,447.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,579.85 : 90,497.57 = 38,731.01 : x
  2. Step 2: Convert to fraction form
    65,579.85/90,497.57 = 38,731.01/x
  3. Step 3: Cross multiply
    65,579.85x = 90,497.57 × 38,731.01
  4. Step 4: Simplify right side
    65,579.85x = 3,505,061,642.50
  5. Step 5: Solve for x
    x = 3,505,061,642.50/65,579.85
  6. Step 6: Final answer
    x = 53,447.23

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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.