Home / 76,766.08-115,178.64-26,851.36

Finding the Fourth Proportional to 76,766.08, 115,178.64 and 26,851.36

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Solution

The fourth proportional to 76,766.08, 115,178.64 and 26,851.36 is: 40,287.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,766.08 : 115,178.64 = 26,851.36 : x
  2. Step 2: Convert to fraction form
    76,766.08/115,178.64 = 26,851.36/x
  3. Step 3: Cross multiply
    76,766.08x = 115,178.64 × 26,851.36
  4. Step 4: Simplify right side
    76,766.08x = 3,092,703,126.95
  5. Step 5: Solve for x
    x = 3,092,703,126.95/76,766.08
  6. Step 6: Final answer
    x = 40,287.37

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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.