Home / 45,043.92-67,564.80-20,077.68

Finding the Fourth Proportional to 45,043.92, 67,564.80 and 20,077.68

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Solution

The fourth proportional to 45,043.92, 67,564.80 and 20,077.68 is: 30,116.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,043.92 : 67,564.80 = 20,077.68 : x
  2. Step 2: Convert to fraction form
    45,043.92/67,564.80 = 20,077.68/x
  3. Step 3: Cross multiply
    45,043.92x = 67,564.80 × 20,077.68
  4. Step 4: Simplify right side
    45,043.92x = 1,356,544,433.66
  5. Step 5: Solve for x
    x = 1,356,544,433.66/45,043.92
  6. Step 6: Final answer
    x = 30,116.04

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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.