Home / 86,971.08-130,472.82-27,821.64

Finding the Fourth Proportional to 86,971.08, 130,472.82 and 27,821.64

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Solution

The fourth proportional to 86,971.08, 130,472.82 and 27,821.64 is: 41,737.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,971.08 : 130,472.82 = 27,821.64 : x
  2. Step 2: Convert to fraction form
    86,971.08/130,472.82 = 27,821.64/x
  3. Step 3: Cross multiply
    86,971.08x = 130,472.82 × 27,821.64
  4. Step 4: Simplify right side
    86,971.08x = 3,629,967,827.82
  5. Step 5: Solve for x
    x = 3,629,967,827.82/86,971.08
  6. Step 6: Final answer
    x = 41,737.64

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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.