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Finding the Fourth Proportional to 45,005.20, 67,491.60 and 22,811.20

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Solution

The fourth proportional to 45,005.20, 67,491.60 and 22,811.20 is: 34,208.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,005.20 : 67,491.60 = 22,811.20 : x
  2. Step 2: Convert to fraction form
    45,005.20/67,491.60 = 22,811.20/x
  3. Step 3: Cross multiply
    45,005.20x = 67,491.60 × 22,811.20
  4. Step 4: Simplify right side
    45,005.20x = 1,539,564,385.92
  5. Step 5: Solve for x
    x = 1,539,564,385.92/45,005.20
  6. Step 6: Final answer
    x = 34,208.59

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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.