Home / 76,148.16-114,222.08-20,744

Finding the Fourth Proportional to 76,148.16, 114,222.08 and 20,744

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Solution

The fourth proportional to 76,148.16, 114,222.08 and 20,744 is: 31,115.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,148.16 : 114,222.08 = 20,744 : x
  2. Step 2: Convert to fraction form
    76,148.16/114,222.08 = 20,744/x
  3. Step 3: Cross multiply
    76,148.16x = 114,222.08 × 20,744
  4. Step 4: Simplify right side
    76,148.16x = 2,369,422,827.52
  5. Step 5: Solve for x
    x = 2,369,422,827.52/76,148.16
  6. Step 6: Final answer
    x = 31,115.96

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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.