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Finding the Fourth Proportional to 65,731.91, 90,710.04 and 37,440.23

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Solution

The fourth proportional to 65,731.91, 90,710.04 and 37,440.23 is: 51,667.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,731.91 : 90,710.04 = 37,440.23 : x
  2. Step 2: Convert to fraction form
    65,731.91/90,710.04 = 37,440.23/x
  3. Step 3: Cross multiply
    65,731.91x = 90,710.04 × 37,440.23
  4. Step 4: Simplify right side
    65,731.91x = 3,396,204,760.91
  5. Step 5: Solve for x
    x = 3,396,204,760.91/65,731.91
  6. Step 6: Final answer
    x = 51,667.52

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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.