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Finding the Fourth Proportional to 77,141.34, 115,725.72 and 27,250.38

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Solution

The fourth proportional to 77,141.34, 115,725.72 and 27,250.38 is: 40,880.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,141.34 : 115,725.72 = 27,250.38 : x
  2. Step 2: Convert to fraction form
    77,141.34/115,725.72 = 27,250.38/x
  3. Step 3: Cross multiply
    77,141.34x = 115,725.72 × 27,250.38
  4. Step 4: Simplify right side
    77,141.34x = 3,153,569,845.77
  5. Step 5: Solve for x
    x = 3,153,569,845.77/77,141.34
  6. Step 6: Final answer
    x = 40,880.41

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1.5x scale

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.