Home / 74,988.85-111,821.87-74,313.77

Finding the Fourth Proportional to 74,988.85, 111,821.87 and 74,313.77

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Solution

The fourth proportional to 74,988.85, 111,821.87 and 74,313.77 is: 110,815.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,988.85 : 111,821.87 = 74,313.77 : x
  2. Step 2: Convert to fraction form
    74,988.85/111,821.87 = 74,313.77/x
  3. Step 3: Cross multiply
    74,988.85x = 111,821.87 × 74,313.77
  4. Step 4: Simplify right side
    74,988.85x = 8,309,904,728.15
  5. Step 5: Solve for x
    x = 8,309,904,728.15/74,988.85
  6. Step 6: Final answer
    x = 110,815.21

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.