Home / 74,298.64-111,320.58-49,909.57

Finding the Fourth Proportional to 74,298.64, 111,320.58 and 49,909.57

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Solution

The fourth proportional to 74,298.64, 111,320.58 and 49,909.57 is: 74,778.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,298.64 : 111,320.58 = 49,909.57 : x
  2. Step 2: Convert to fraction form
    74,298.64/111,320.58 = 49,909.57/x
  3. Step 3: Cross multiply
    74,298.64x = 111,320.58 × 49,909.57
  4. Step 4: Simplify right side
    74,298.64x = 5,555,961,908.07
  5. Step 5: Solve for x
    x = 5,555,961,908.07/74,298.64
  6. Step 6: Final answer
    x = 74,778.78

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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.