Home / 58,719.47-88,078.96-21,270.78

Finding the Fourth Proportional to 58,719.47, 88,078.96 and 21,270.78

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Solution

The fourth proportional to 58,719.47, 88,078.96 and 21,270.78 is: 31,906.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,719.47 : 88,078.96 = 21,270.78 : x
  2. Step 2: Convert to fraction form
    58,719.47/88,078.96 = 21,270.78/x
  3. Step 3: Cross multiply
    58,719.47x = 88,078.96 × 21,270.78
  4. Step 4: Simplify right side
    58,719.47x = 1,873,508,180.79
  5. Step 5: Solve for x
    x = 1,873,508,180.79/58,719.47
  6. Step 6: Final answer
    x = 31,906.08

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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.