Home / 74,448.87-111,671.55-18,288.89

Finding the Fourth Proportional to 74,448.87, 111,671.55 and 18,288.89

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Solution

The fourth proportional to 74,448.87, 111,671.55 and 18,288.89 is: 27,432.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,448.87 : 111,671.55 = 18,288.89 : x
  2. Step 2: Convert to fraction form
    74,448.87/111,671.55 = 18,288.89/x
  3. Step 3: Cross multiply
    74,448.87x = 111,671.55 × 18,288.89
  4. Step 4: Simplify right side
    74,448.87x = 2,042,348,044.28
  5. Step 5: Solve for x
    x = 2,042,348,044.28/74,448.87
  6. Step 6: Final answer
    x = 27,432.90

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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.