Home / 76,733.04-115,109.28-21,329.04

Finding the Fourth Proportional to 76,733.04, 115,109.28 and 21,329.04

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Solution

The fourth proportional to 76,733.04, 115,109.28 and 21,329.04 is: 31,996.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,733.04 : 115,109.28 = 21,329.04 : x
  2. Step 2: Convert to fraction form
    76,733.04/115,109.28 = 21,329.04/x
  3. Step 3: Cross multiply
    76,733.04x = 115,109.28 × 21,329.04
  4. Step 4: Simplify right side
    76,733.04x = 2,455,170,437.49
  5. Step 5: Solve for x
    x = 2,455,170,437.49/76,733.04
  6. Step 6: Final answer
    x = 31,996.26

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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.