Home / 57,765.13-86,655.95-17,787.49

Finding the Fourth Proportional to 57,765.13, 86,655.95 and 17,787.49

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Solution

The fourth proportional to 57,765.13, 86,655.95 and 17,787.49 is: 26,683.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,765.13 : 86,655.95 = 17,787.49 : x
  2. Step 2: Convert to fraction form
    57,765.13/86,655.95 = 17,787.49/x
  3. Step 3: Cross multiply
    57,765.13x = 86,655.95 × 17,787.49
  4. Step 4: Simplify right side
    57,765.13x = 1,541,391,844.07
  5. Step 5: Solve for x
    x = 1,541,391,844.07/57,765.13
  6. Step 6: Final answer
    x = 26,683.78

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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.