Home / 91,719.56-137,556.26-35,540.40

Finding the Fourth Proportional to 91,719.56, 137,556.26 and 35,540.40

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Solution

The fourth proportional to 91,719.56, 137,556.26 and 35,540.40 is: 53,301.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,719.56 : 137,556.26 = 35,540.40 : x
  2. Step 2: Convert to fraction form
    91,719.56/137,556.26 = 35,540.40/x
  3. Step 3: Cross multiply
    91,719.56x = 137,556.26 × 35,540.40
  4. Step 4: Simplify right side
    91,719.56x = 4,888,804,502.90
  5. Step 5: Solve for x
    x = 4,888,804,502.90/91,719.56
  6. Step 6: Final answer
    x = 53,301.66

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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.