Home / 76,467.75-114,707.69-20,306.40

Finding the Fourth Proportional to 76,467.75, 114,707.69 and 20,306.40

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Solution

The fourth proportional to 76,467.75, 114,707.69 and 20,306.40 is: 30,461.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,467.75 : 114,707.69 = 20,306.40 : x
  2. Step 2: Convert to fraction form
    76,467.75/114,707.69 = 20,306.40/x
  3. Step 3: Cross multiply
    76,467.75x = 114,707.69 × 20,306.40
  4. Step 4: Simplify right side
    76,467.75x = 2,329,299,894.90
  5. Step 5: Solve for x
    x = 2,329,299,894.90/76,467.75
  6. Step 6: Final answer
    x = 30,461.21

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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.