Home / 48,479.12-66,906.24-29,628.80

Finding the Fourth Proportional to 48,479.12, 66,906.24 and 29,628.80

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Solution

The fourth proportional to 48,479.12, 66,906.24 and 29,628.80 is: 40,890.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,479.12 : 66,906.24 = 29,628.80 : x
  2. Step 2: Convert to fraction form
    48,479.12/66,906.24 = 29,628.80/x
  3. Step 3: Cross multiply
    48,479.12x = 66,906.24 × 29,628.80
  4. Step 4: Simplify right side
    48,479.12x = 1,982,351,603.71
  5. Step 5: Solve for x
    x = 1,982,351,603.71/48,479.12
  6. Step 6: Final answer
    x = 40,890.83

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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.