Home / 76,897.26-115,288.56-51,867.18

Finding the Fourth Proportional to 76,897.26, 115,288.56 and 51,867.18

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Solution

The fourth proportional to 76,897.26, 115,288.56 and 51,867.18 is: 77,762.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,897.26 : 115,288.56 = 51,867.18 : x
  2. Step 2: Convert to fraction form
    76,897.26/115,288.56 = 51,867.18/x
  3. Step 3: Cross multiply
    76,897.26x = 115,288.56 × 51,867.18
  4. Step 4: Simplify right side
    76,897.26x = 5,979,692,493.46
  5. Step 5: Solve for x
    x = 5,979,692,493.46/76,897.26
  6. Step 6: Final answer
    x = 77,762.10

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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.