Home / 86,817.31-130,235.30-27,639.14

Finding the Fourth Proportional to 86,817.31, 130,235.30 and 27,639.14

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Solution

The fourth proportional to 86,817.31, 130,235.30 and 27,639.14 is: 41,461.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,817.31 : 130,235.30 = 27,639.14 : x
  2. Step 2: Convert to fraction form
    86,817.31/130,235.30 = 27,639.14/x
  3. Step 3: Cross multiply
    86,817.31x = 130,235.30 × 27,639.14
  4. Step 4: Simplify right side
    86,817.31x = 3,599,591,689.64
  5. Step 5: Solve for x
    x = 3,599,591,689.64/86,817.31
  6. Step 6: Final answer
    x = 41,461.68

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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.