Home / 86,968.73-130,465.39-27,790.56

Finding the Fourth Proportional to 86,968.73, 130,465.39 and 27,790.56

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Solution

The fourth proportional to 86,968.73, 130,465.39 and 27,790.56 is: 41,689.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,968.73 : 130,465.39 = 27,790.56 : x
  2. Step 2: Convert to fraction form
    86,968.73/130,465.39 = 27,790.56/x
  3. Step 3: Cross multiply
    86,968.73x = 130,465.39 × 27,790.56
  4. Step 4: Simplify right side
    86,968.73x = 3,625,706,248.72
  5. Step 5: Solve for x
    x = 3,625,706,248.72/86,968.73
  6. Step 6: Final answer
    x = 41,689.77

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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.