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Finding the Fourth Proportional to 60,441.91, 90,660.09 and 21,002.11

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Solution

The fourth proportional to 60,441.91, 90,660.09 and 21,002.11 is: 31,502.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,441.91 : 90,660.09 = 21,002.11 : x
  2. Step 2: Convert to fraction form
    60,441.91/90,660.09 = 21,002.11/x
  3. Step 3: Cross multiply
    60,441.91x = 90,660.09 × 21,002.11
  4. Step 4: Simplify right side
    60,441.91x = 1,904,053,182.79
  5. Step 5: Solve for x
    x = 1,904,053,182.79/60,441.91
  6. Step 6: Final answer
    x = 31,502.20

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1.5x scale

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.