Home / 78,127.47-117,199.44-25,536.87

Finding the Fourth Proportional to 78,127.47, 117,199.44 and 25,536.87

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Solution

The fourth proportional to 78,127.47, 117,199.44 and 25,536.87 is: 38,308.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,127.47 : 117,199.44 = 25,536.87 : x
  2. Step 2: Convert to fraction form
    78,127.47/117,199.44 = 25,536.87/x
  3. Step 3: Cross multiply
    78,127.47x = 117,199.44 × 25,536.87
  4. Step 4: Simplify right side
    78,127.47x = 2,992,906,863.35
  5. Step 5: Solve for x
    x = 2,992,906,863.35/78,127.47
  6. Step 6: Final answer
    x = 38,308.00

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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.