Home / 76,287.35-114,447.89-25,688.86

Finding the Fourth Proportional to 76,287.35, 114,447.89 and 25,688.86

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Solution

The fourth proportional to 76,287.35, 114,447.89 and 25,688.86 is: 38,538.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,287.35 : 114,447.89 = 25,688.86 : x
  2. Step 2: Convert to fraction form
    76,287.35/114,447.89 = 25,688.86/x
  3. Step 3: Cross multiply
    76,287.35x = 114,447.89 × 25,688.86
  4. Step 4: Simplify right side
    76,287.35x = 2,940,036,100.88
  5. Step 5: Solve for x
    x = 2,940,036,100.88/76,287.35
  6. Step 6: Final answer
    x = 38,538.97

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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.