Home / 57,414.55-86,131.06-19,985.26

Finding the Fourth Proportional to 57,414.55, 86,131.06 and 19,985.26

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Solution

The fourth proportional to 57,414.55, 86,131.06 and 19,985.26 is: 29,981.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,414.55 : 86,131.06 = 19,985.26 : x
  2. Step 2: Convert to fraction form
    57,414.55/86,131.06 = 19,985.26/x
  3. Step 3: Cross multiply
    57,414.55x = 86,131.06 × 19,985.26
  4. Step 4: Simplify right side
    57,414.55x = 1,721,351,628.18
  5. Step 5: Solve for x
    x = 1,721,351,628.18/57,414.55
  6. Step 6: Final answer
    x = 29,981.10

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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.