Home / 74,169.48-111,270.75-40,872.42

Finding the Fourth Proportional to 74,169.48, 111,270.75 and 40,872.42

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Solution

The fourth proportional to 74,169.48, 111,270.75 and 40,872.42 is: 61,317.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,169.48 : 111,270.75 = 40,872.42 : x
  2. Step 2: Convert to fraction form
    74,169.48/111,270.75 = 40,872.42/x
  3. Step 3: Cross multiply
    74,169.48x = 111,270.75 × 40,872.42
  4. Step 4: Simplify right side
    74,169.48x = 4,547,904,827.72
  5. Step 5: Solve for x
    x = 4,547,904,827.72/74,169.48
  6. Step 6: Final answer
    x = 61,317.74

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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.