Home / 86,339.12-129,529.42-33,030.23

Finding the Fourth Proportional to 86,339.12, 129,529.42 and 33,030.23

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Solution

The fourth proportional to 86,339.12, 129,529.42 and 33,030.23 is: 49,553.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,339.12 : 129,529.42 = 33,030.23 : x
  2. Step 2: Convert to fraction form
    86,339.12/129,529.42 = 33,030.23/x
  3. Step 3: Cross multiply
    86,339.12x = 129,529.42 × 33,030.23
  4. Step 4: Simplify right side
    86,339.12x = 4,278,385,721.57
  5. Step 5: Solve for x
    x = 4,278,385,721.57/86,339.12
  6. Step 6: Final answer
    x = 49,553.27

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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.