Home / 86,139.06-129,241.53-33,585.18

Finding the Fourth Proportional to 86,139.06, 129,241.53 and 33,585.18

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Solution

The fourth proportional to 86,139.06, 129,241.53 and 33,585.18 is: 50,390.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,139.06 : 129,241.53 = 33,585.18 : x
  2. Step 2: Convert to fraction form
    86,139.06/129,241.53 = 33,585.18/x
  3. Step 3: Cross multiply
    86,139.06x = 129,241.53 × 33,585.18
  4. Step 4: Simplify right side
    86,139.06x = 4,340,600,048.53
  5. Step 5: Solve for x
    x = 4,340,600,048.53/86,139.06
  6. Step 6: Final answer
    x = 50,390.61

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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.