Home / 85,100.11-127,669.13-25,940.38

Finding the Fourth Proportional to 85,100.11, 127,669.13 and 25,940.38

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Solution

The fourth proportional to 85,100.11, 127,669.13 and 25,940.38 is: 38,916.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,100.11 : 127,669.13 = 25,940.38 : x
  2. Step 2: Convert to fraction form
    85,100.11/127,669.13 = 25,940.38/x
  3. Step 3: Cross multiply
    85,100.11x = 127,669.13 × 25,940.38
  4. Step 4: Simplify right side
    85,100.11x = 3,311,785,746.47
  5. Step 5: Solve for x
    x = 3,311,785,746.47/85,100.11
  6. Step 6: Final answer
    x = 38,916.35

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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.