Home / 74,470.07-111,784.68-30,125.81

Finding the Fourth Proportional to 74,470.07, 111,784.68 and 30,125.81

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Solution

The fourth proportional to 74,470.07, 111,784.68 and 30,125.81 is: 45,220.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,470.07 : 111,784.68 = 30,125.81 : x
  2. Step 2: Convert to fraction form
    74,470.07/111,784.68 = 30,125.81/x
  3. Step 3: Cross multiply
    74,470.07x = 111,784.68 × 30,125.81
  4. Step 4: Simplify right side
    74,470.07x = 3,367,603,471.67
  5. Step 5: Solve for x
    x = 3,367,603,471.67/74,470.07
  6. Step 6: Final answer
    x = 45,220.90

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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.