Home / 74,105.89-111,125.21-31,966.04

Finding the Fourth Proportional to 74,105.89, 111,125.21 and 31,966.04

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Solution

The fourth proportional to 74,105.89, 111,125.21 and 31,966.04 is: 47,934.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,105.89 : 111,125.21 = 31,966.04 : x
  2. Step 2: Convert to fraction form
    74,105.89/111,125.21 = 31,966.04/x
  3. Step 3: Cross multiply
    74,105.89x = 111,125.21 × 31,966.04
  4. Step 4: Simplify right side
    74,105.89x = 3,552,232,907.87
  5. Step 5: Solve for x
    x = 3,552,232,907.87/74,105.89
  6. Step 6: Final answer
    x = 47,934.56

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1.5x scale

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.