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Finding the Fourth Proportional to 86,951.70, 130,415.40 and 27,793.35

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Solution

The fourth proportional to 86,951.70, 130,415.40 and 27,793.35 is: 41,686.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,951.70 : 130,415.40 = 27,793.35 : x
  2. Step 2: Convert to fraction form
    86,951.70/130,415.40 = 27,793.35/x
  3. Step 3: Cross multiply
    86,951.70x = 130,415.40 × 27,793.35
  4. Step 4: Simplify right side
    86,951.70x = 3,624,680,857.59
  5. Step 5: Solve for x
    x = 3,624,680,857.59/86,951.70
  6. Step 6: Final answer
    x = 41,686.14

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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.