Home / 86,982.75-120,036.20-49,264.29

Finding the Fourth Proportional to 86,982.75, 120,036.20 and 49,264.29

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Solution

The fourth proportional to 86,982.75, 120,036.20 and 49,264.29 is: 67,984.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,982.75 : 120,036.20 = 49,264.29 : x
  2. Step 2: Convert to fraction form
    86,982.75/120,036.20 = 49,264.29/x
  3. Step 3: Cross multiply
    86,982.75x = 120,036.20 × 49,264.29
  4. Step 4: Simplify right side
    86,982.75x = 5,913,497,920.98
  5. Step 5: Solve for x
    x = 5,913,497,920.98/86,982.75
  6. Step 6: Final answer
    x = 67,984.72

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1.5x scale

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.