Home / 86,971.74-130,458.51-27,806.10

Finding the Fourth Proportional to 86,971.74, 130,458.51 and 27,806.10

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Solution

The fourth proportional to 86,971.74, 130,458.51 and 27,806.10 is: 41,709.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,971.74 : 130,458.51 = 27,806.10 : x
  2. Step 2: Convert to fraction form
    86,971.74/130,458.51 = 27,806.10/x
  3. Step 3: Cross multiply
    86,971.74x = 130,458.51 × 27,806.10
  4. Step 4: Simplify right side
    86,971.74x = 3,627,542,374.91
  5. Step 5: Solve for x
    x = 3,627,542,374.91/86,971.74
  6. Step 6: Final answer
    x = 41,709.44

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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.