Home / 75,781.75-104,582.07-42,247.75

Finding the Fourth Proportional to 75,781.75, 104,582.07 and 42,247.75

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Solution

The fourth proportional to 75,781.75, 104,582.07 and 42,247.75 is: 58,303.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,781.75 : 104,582.07 = 42,247.75 : x
  2. Step 2: Convert to fraction form
    75,781.75/104,582.07 = 42,247.75/x
  3. Step 3: Cross multiply
    75,781.75x = 104,582.07 × 42,247.75
  4. Step 4: Simplify right side
    75,781.75x = 4,418,357,147.84
  5. Step 5: Solve for x
    x = 4,418,357,147.84/75,781.75
  6. Step 6: Final answer
    x = 58,303.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.