Home / 86,034.32-129,069.92-36,085.62

Finding the Fourth Proportional to 86,034.32, 129,069.92 and 36,085.62

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Solution

The fourth proportional to 86,034.32, 129,069.92 and 36,085.62 is: 54,136.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,034.32 : 129,069.92 = 36,085.62 : x
  2. Step 2: Convert to fraction form
    86,034.32/129,069.92 = 36,085.62/x
  3. Step 3: Cross multiply
    86,034.32x = 129,069.92 × 36,085.62
  4. Step 4: Simplify right side
    86,034.32x = 4,657,568,660.78
  5. Step 5: Solve for x
    x = 4,657,568,660.78/86,034.32
  6. Step 6: Final answer
    x = 54,136.17

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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.