Home / 86,509.12-129,752.46-27,350.76

Finding the Fourth Proportional to 86,509.12, 129,752.46 and 27,350.76

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Solution

The fourth proportional to 86,509.12, 129,752.46 and 27,350.76 is: 41,022.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,509.12 : 129,752.46 = 27,350.76 : x
  2. Step 2: Convert to fraction form
    86,509.12/129,752.46 = 27,350.76/x
  3. Step 3: Cross multiply
    86,509.12x = 129,752.46 × 27,350.76
  4. Step 4: Simplify right side
    86,509.12x = 3,548,828,392.87
  5. Step 5: Solve for x
    x = 3,548,828,392.87/86,509.12
  6. Step 6: Final answer
    x = 41,022.59

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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.