Home / 86,282.10-129,423.06-27,122.94

Finding the Fourth Proportional to 86,282.10, 129,423.06 and 27,122.94

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Solution

The fourth proportional to 86,282.10, 129,423.06 and 27,122.94 is: 40,684.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,282.10 : 129,423.06 = 27,122.94 : x
  2. Step 2: Convert to fraction form
    86,282.10/129,423.06 = 27,122.94/x
  3. Step 3: Cross multiply
    86,282.10x = 129,423.06 × 27,122.94
  4. Step 4: Simplify right side
    86,282.10x = 3,510,333,891.00
  5. Step 5: Solve for x
    x = 3,510,333,891.00/86,282.10
  6. Step 6: Final answer
    x = 40,684.38

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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.