Home / 68,569.66-94,588.05-39,886.09

Finding the Fourth Proportional to 68,569.66, 94,588.05 and 39,886.09

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Solution

The fourth proportional to 68,569.66, 94,588.05 and 39,886.09 is: 55,020.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,569.66 : 94,588.05 = 39,886.09 : x
  2. Step 2: Convert to fraction form
    68,569.66/94,588.05 = 39,886.09/x
  3. Step 3: Cross multiply
    68,569.66x = 94,588.05 × 39,886.09
  4. Step 4: Simplify right side
    68,569.66x = 3,772,747,475.22
  5. Step 5: Solve for x
    x = 3,772,747,475.22/68,569.66
  6. Step 6: Final answer
    x = 55,020.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.