Home / 78,588.14-117,882.25-25,997.63

Finding the Fourth Proportional to 78,588.14, 117,882.25 and 25,997.63

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Solution

The fourth proportional to 78,588.14, 117,882.25 and 25,997.63 is: 38,996.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,588.14 : 117,882.25 = 25,997.63 : x
  2. Step 2: Convert to fraction form
    78,588.14/117,882.25 = 25,997.63/x
  3. Step 3: Cross multiply
    78,588.14x = 117,882.25 × 25,997.63
  4. Step 4: Simplify right side
    78,588.14x = 3,064,658,529.66
  5. Step 5: Solve for x
    x = 3,064,658,529.66/78,588.14
  6. Step 6: Final answer
    x = 38,996.45

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Similar ratio
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1.5x scale

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.