Home / 74,340.14-111,450.72-38,783.61

Finding the Fourth Proportional to 74,340.14, 111,450.72 and 38,783.61

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Solution

The fourth proportional to 74,340.14, 111,450.72 and 38,783.61 is: 58,144.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,340.14 : 111,450.72 = 38,783.61 : x
  2. Step 2: Convert to fraction form
    74,340.14/111,450.72 = 38,783.61/x
  3. Step 3: Cross multiply
    74,340.14x = 111,450.72 × 38,783.61
  4. Step 4: Simplify right side
    74,340.14x = 4,322,461,258.70
  5. Step 5: Solve for x
    x = 4,322,461,258.70/74,340.14
  6. Step 6: Final answer
    x = 58,144.38

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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.