Home / 57,972.34-86,963.95-17,991.70

Finding the Fourth Proportional to 57,972.34, 86,963.95 and 17,991.70

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Solution

The fourth proportional to 57,972.34, 86,963.95 and 17,991.70 is: 26,989.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,972.34 : 86,963.95 = 17,991.70 : x
  2. Step 2: Convert to fraction form
    57,972.34/86,963.95 = 17,991.70/x
  3. Step 3: Cross multiply
    57,972.34x = 86,963.95 × 17,991.70
  4. Step 4: Simplify right side
    57,972.34x = 1,564,629,299.22
  5. Step 5: Solve for x
    x = 1,564,629,299.22/57,972.34
  6. Step 6: Final answer
    x = 26,989.24

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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.