Home / 76,128.27-114,025.68-38,623.92

Finding the Fourth Proportional to 76,128.27, 114,025.68 and 38,623.92

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Solution

The fourth proportional to 76,128.27, 114,025.68 and 38,623.92 is: 57,851.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,128.27 : 114,025.68 = 38,623.92 : x
  2. Step 2: Convert to fraction form
    76,128.27/114,025.68 = 38,623.92/x
  3. Step 3: Cross multiply
    76,128.27x = 114,025.68 × 38,623.92
  4. Step 4: Simplify right side
    76,128.27x = 4,404,118,742.27
  5. Step 5: Solve for x
    x = 4,404,118,742.27/76,128.27
  6. Step 6: Final answer
    x = 57,851.29

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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.