Home / 76,478.68-114,642.78-32,118.04

Finding the Fourth Proportional to 76,478.68, 114,642.78 and 32,118.04

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Solution

The fourth proportional to 76,478.68, 114,642.78 and 32,118.04 is: 48,145.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,478.68 : 114,642.78 = 32,118.04 : x
  2. Step 2: Convert to fraction form
    76,478.68/114,642.78 = 32,118.04/x
  3. Step 3: Cross multiply
    76,478.68x = 114,642.78 × 32,118.04
  4. Step 4: Simplify right side
    76,478.68x = 3,682,101,393.75
  5. Step 5: Solve for x
    x = 3,682,101,393.75/76,478.68
  6. Step 6: Final answer
    x = 48,145.46

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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.