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Finding the Fourth Proportional to 86,564.62, 119,461.19 and 54,300.61

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Solution

The fourth proportional to 86,564.62, 119,461.19 and 54,300.61 is: 74,936.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,564.62 : 119,461.19 = 54,300.61 : x
  2. Step 2: Convert to fraction form
    86,564.62/119,461.19 = 54,300.61/x
  3. Step 3: Cross multiply
    86,564.62x = 119,461.19 × 54,300.61
  4. Step 4: Simplify right side
    86,564.62x = 6,486,815,488.33
  5. Step 5: Solve for x
    x = 6,486,815,488.33/86,564.62
  6. Step 6: Final answer
    x = 74,936.11

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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.