Home / 74,231.40-111,336.30-21,635.40

Finding the Fourth Proportional to 74,231.40, 111,336.30 and 21,635.40

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Solution

The fourth proportional to 74,231.40, 111,336.30 and 21,635.40 is: 32,449.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,231.40 : 111,336.30 = 21,635.40 : x
  2. Step 2: Convert to fraction form
    74,231.40/111,336.30 = 21,635.40/x
  3. Step 3: Cross multiply
    74,231.40x = 111,336.30 × 21,635.40
  4. Step 4: Simplify right side
    74,231.40x = 2,408,805,385.02
  5. Step 5: Solve for x
    x = 2,408,805,385.02/74,231.40
  6. Step 6: Final answer
    x = 32,449.95

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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.