Home / 86,568.20-129,852.30-36,631.70

Finding the Fourth Proportional to 86,568.20, 129,852.30 and 36,631.70

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Solution

The fourth proportional to 86,568.20, 129,852.30 and 36,631.70 is: 54,947.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,568.20 : 129,852.30 = 36,631.70 : x
  2. Step 2: Convert to fraction form
    86,568.20/129,852.30 = 36,631.70/x
  3. Step 3: Cross multiply
    86,568.20x = 129,852.30 × 36,631.70
  4. Step 4: Simplify right side
    86,568.20x = 4,756,710,497.91
  5. Step 5: Solve for x
    x = 4,756,710,497.91/86,568.20
  6. Step 6: Final answer
    x = 54,947.55

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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.