Home / 54,865.09-75,712.91-30,666.62

Finding the Fourth Proportional to 54,865.09, 75,712.91 and 30,666.62

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Solution

The fourth proportional to 54,865.09, 75,712.91 and 30,666.62 is: 42,319.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,865.09 : 75,712.91 = 30,666.62 : x
  2. Step 2: Convert to fraction form
    54,865.09/75,712.91 = 30,666.62/x
  3. Step 3: Cross multiply
    54,865.09x = 75,712.91 × 30,666.62
  4. Step 4: Simplify right side
    54,865.09x = 2,321,858,738.17
  5. Step 5: Solve for x
    x = 2,321,858,738.17/54,865.09
  6. Step 6: Final answer
    x = 42,319.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.