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Finding the Fourth Proportional to 115,481, 159,364.28 and 62,489

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Solution

The fourth proportional to 115,481, 159,364.28 and 62,489 is: 86,235.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,481 : 159,364.28 = 62,489 : x
  2. Step 2: Convert to fraction form
    115,481/159,364.28 = 62,489/x
  3. Step 3: Cross multiply
    115,481x = 159,364.28 × 62,489
  4. Step 4: Simplify right side
    115,481x = 9,958,514,492.92
  5. Step 5: Solve for x
    x = 9,958,514,492.92/115,481
  6. Step 6: Final answer
    x = 86,235.09

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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.