Home / 74,244.36-111,424.86-40,987.38

Finding the Fourth Proportional to 74,244.36, 111,424.86 and 40,987.38

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Solution

The fourth proportional to 74,244.36, 111,424.86 and 40,987.38 is: 61,513.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,244.36 : 111,424.86 = 40,987.38 : x
  2. Step 2: Convert to fraction form
    74,244.36/111,424.86 = 40,987.38/x
  3. Step 3: Cross multiply
    74,244.36x = 111,424.86 × 40,987.38
  4. Step 4: Simplify right side
    74,244.36x = 4,567,013,078.27
  5. Step 5: Solve for x
    x = 4,567,013,078.27/74,244.36
  6. Step 6: Final answer
    x = 61,513.27

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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.