Home / 43,155.66-64,712.61-25,620.78

Finding the Fourth Proportional to 43,155.66, 64,712.61 and 25,620.78

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Solution

The fourth proportional to 43,155.66, 64,712.61 and 25,620.78 is: 38,418.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,155.66 : 64,712.61 = 25,620.78 : x
  2. Step 2: Convert to fraction form
    43,155.66/64,712.61 = 25,620.78/x
  3. Step 3: Cross multiply
    43,155.66x = 64,712.61 × 25,620.78
  4. Step 4: Simplify right side
    43,155.66x = 1,657,987,544.04
  5. Step 5: Solve for x
    x = 1,657,987,544.04/43,155.66
  6. Step 6: Final answer
    x = 38,418.77

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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.