Home / 74,175.72-111,281.79-21,585.66

Finding the Fourth Proportional to 74,175.72, 111,281.79 and 21,585.66

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Solution

The fourth proportional to 74,175.72, 111,281.79 and 21,585.66 is: 32,383.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,175.72 : 111,281.79 = 21,585.66 : x
  2. Step 2: Convert to fraction form
    74,175.72/111,281.79 = 21,585.66/x
  3. Step 3: Cross multiply
    74,175.72x = 111,281.79 × 21,585.66
  4. Step 4: Simplify right side
    74,175.72x = 2,402,090,883.13
  5. Step 5: Solve for x
    x = 2,402,090,883.13/74,175.72
  6. Step 6: Final answer
    x = 32,383.79

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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.