Home / 57,878.38-86,823.95-18,426.32

Finding the Fourth Proportional to 57,878.38, 86,823.95 and 18,426.32

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Solution

The fourth proportional to 57,878.38, 86,823.95 and 18,426.32 is: 27,641.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,878.38 : 86,823.95 = 18,426.32 : x
  2. Step 2: Convert to fraction form
    57,878.38/86,823.95 = 18,426.32/x
  3. Step 3: Cross multiply
    57,878.38x = 86,823.95 × 18,426.32
  4. Step 4: Simplify right side
    57,878.38x = 1,599,845,789.35
  5. Step 5: Solve for x
    x = 1,599,845,789.35/57,878.38
  6. Step 6: Final answer
    x = 27,641.51

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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.