Home / 86,750.84-130,139.22-27,588.44

Finding the Fourth Proportional to 86,750.84, 130,139.22 and 27,588.44

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Solution

The fourth proportional to 86,750.84, 130,139.22 and 27,588.44 is: 41,386.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,750.84 : 130,139.22 = 27,588.44 : x
  2. Step 2: Convert to fraction form
    86,750.84/130,139.22 = 27,588.44/x
  3. Step 3: Cross multiply
    86,750.84x = 130,139.22 × 27,588.44
  4. Step 4: Simplify right side
    86,750.84x = 3,590,338,062.62
  5. Step 5: Solve for x
    x = 3,590,338,062.62/86,750.84
  6. Step 6: Final answer
    x = 41,386.78

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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.