Home / 74,178.48-111,281.68-29,808.80

Finding the Fourth Proportional to 74,178.48, 111,281.68 and 29,808.80

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Solution

The fourth proportional to 74,178.48, 111,281.68 and 29,808.80 is: 44,718.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,178.48 : 111,281.68 = 29,808.80 : x
  2. Step 2: Convert to fraction form
    74,178.48/111,281.68 = 29,808.80/x
  3. Step 3: Cross multiply
    74,178.48x = 111,281.68 × 29,808.80
  4. Step 4: Simplify right side
    74,178.48x = 3,317,173,342.78
  5. Step 5: Solve for x
    x = 3,317,173,342.78/74,178.48
  6. Step 6: Final answer
    x = 44,718.81

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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.