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Finding the Fourth Proportional to 65,955.20, 91,049.70 and 37,655.42

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Solution

The fourth proportional to 65,955.20, 91,049.70 and 37,655.42 is: 51,982.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,955.20 : 91,049.70 = 37,655.42 : x
  2. Step 2: Convert to fraction form
    65,955.20/91,049.70 = 37,655.42/x
  3. Step 3: Cross multiply
    65,955.20x = 91,049.70 × 37,655.42
  4. Step 4: Simplify right side
    65,955.20x = 3,428,514,694.37
  5. Step 5: Solve for x
    x = 3,428,514,694.37/65,955.20
  6. Step 6: Final answer
    x = 51,982.48

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1.5x scale

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.