Home / 86,966.88-120,014.57-50,689.79

Finding the Fourth Proportional to 86,966.88, 120,014.57 and 50,689.79

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Solution

The fourth proportional to 86,966.88, 120,014.57 and 50,689.79 is: 69,952.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,966.88 : 120,014.57 = 50,689.79 : x
  2. Step 2: Convert to fraction form
    86,966.88/120,014.57 = 50,689.79/x
  3. Step 3: Cross multiply
    86,966.88x = 120,014.57 × 50,689.79
  4. Step 4: Simplify right side
    86,966.88x = 6,083,513,396.83
  5. Step 5: Solve for x
    x = 6,083,513,396.83/86,966.88
  6. Step 6: Final answer
    x = 69,952.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.