Home / 74,618.12-111,894.30-39,549.68

Finding the Fourth Proportional to 74,618.12, 111,894.30 and 39,549.68

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Solution

The fourth proportional to 74,618.12, 111,894.30 and 39,549.68 is: 59,307.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,618.12 : 111,894.30 = 39,549.68 : x
  2. Step 2: Convert to fraction form
    74,618.12/111,894.30 = 39,549.68/x
  3. Step 3: Cross multiply
    74,618.12x = 111,894.30 × 39,549.68
  4. Step 4: Simplify right side
    74,618.12x = 4,425,383,758.82
  5. Step 5: Solve for x
    x = 4,425,383,758.82/74,618.12
  6. Step 6: Final answer
    x = 59,307.09

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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.