Home / 74,988.35-111,821.12-74,313.27

Finding the Fourth Proportional to 74,988.35, 111,821.12 and 74,313.27

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Solution

The fourth proportional to 74,988.35, 111,821.12 and 74,313.27 is: 110,814.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,988.35 : 111,821.12 = 74,313.27 : x
  2. Step 2: Convert to fraction form
    74,988.35/111,821.12 = 74,313.27/x
  3. Step 3: Cross multiply
    74,988.35x = 111,821.12 × 74,313.27
  4. Step 4: Simplify right side
    74,988.35x = 8,309,793,268.05
  5. Step 5: Solve for x
    x = 8,309,793,268.05/74,988.35
  6. Step 6: Final answer
    x = 110,814.46

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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.