Home / 86,972.67-130,456.95-27,808.85

Finding the Fourth Proportional to 86,972.67, 130,456.95 and 27,808.85

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Solution

The fourth proportional to 86,972.67, 130,456.95 and 27,808.85 is: 41,712.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,972.67 : 130,456.95 = 27,808.85 : x
  2. Step 2: Convert to fraction form
    86,972.67/130,456.95 = 27,808.85/x
  3. Step 3: Cross multiply
    86,972.67x = 130,456.95 × 27,808.85
  4. Step 4: Simplify right side
    86,972.67x = 3,627,857,975.87
  5. Step 5: Solve for x
    x = 3,627,857,975.87/86,972.67
  6. Step 6: Final answer
    x = 41,712.62

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1.5x scale

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.