Home / 74,330.61-111,436.44-38,774.09

Finding the Fourth Proportional to 74,330.61, 111,436.44 and 38,774.09

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Solution

The fourth proportional to 74,330.61, 111,436.44 and 38,774.09 is: 58,130.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,330.61 : 111,436.44 = 38,774.09 : x
  2. Step 2: Convert to fraction form
    74,330.61/111,436.44 = 38,774.09/x
  3. Step 3: Cross multiply
    74,330.61x = 111,436.44 × 38,774.09
  4. Step 4: Simplify right side
    74,330.61x = 4,320,846,687.03
  5. Step 5: Solve for x
    x = 4,320,846,687.03/74,330.61
  6. Step 6: Final answer
    x = 58,130.11

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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.