Home / 90,864.92-136,298.82-27,686.36

Finding the Fourth Proportional to 90,864.92, 136,298.82 and 27,686.36

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Solution

The fourth proportional to 90,864.92, 136,298.82 and 27,686.36 is: 41,529.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,864.92 : 136,298.82 = 27,686.36 : x
  2. Step 2: Convert to fraction form
    90,864.92/136,298.82 = 27,686.36/x
  3. Step 3: Cross multiply
    90,864.92x = 136,298.82 × 27,686.36
  4. Step 4: Simplify right side
    90,864.92x = 3,773,618,198.10
  5. Step 5: Solve for x
    x = 3,773,618,198.10/90,864.92
  6. Step 6: Final answer
    x = 41,529.98

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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.