Home / 83,739.79-115,561.38-45,499.64

Finding the Fourth Proportional to 83,739.79, 115,561.38 and 45,499.64

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Solution

The fourth proportional to 83,739.79, 115,561.38 and 45,499.64 is: 62,789.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,739.79 : 115,561.38 = 45,499.64 : x
  2. Step 2: Convert to fraction form
    83,739.79/115,561.38 = 45,499.64/x
  3. Step 3: Cross multiply
    83,739.79x = 115,561.38 × 45,499.64
  4. Step 4: Simplify right side
    83,739.79x = 5,258,001,674.52
  5. Step 5: Solve for x
    x = 5,258,001,674.52/83,739.79
  6. Step 6: Final answer
    x = 62,789.76

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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.