Home / 86,500.83-129,712.26-36,555.21

Finding the Fourth Proportional to 86,500.83, 129,712.26 and 36,555.21

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Solution

The fourth proportional to 86,500.83, 129,712.26 and 36,555.21 is: 54,816.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,500.83 : 129,712.26 = 36,555.21 : x
  2. Step 2: Convert to fraction form
    86,500.83/129,712.26 = 36,555.21/x
  3. Step 3: Cross multiply
    86,500.83x = 129,712.26 × 36,555.21
  4. Step 4: Simplify right side
    86,500.83x = 4,741,658,903.87
  5. Step 5: Solve for x
    x = 4,741,658,903.87/86,500.83
  6. Step 6: Final answer
    x = 54,816.34

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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.