Home / 86,161.72-129,263.28-29,993.56

Finding the Fourth Proportional to 86,161.72, 129,263.28 and 29,993.56

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Solution

The fourth proportional to 86,161.72, 129,263.28 and 29,993.56 is: 44,997.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,161.72 : 129,263.28 = 29,993.56 : x
  2. Step 2: Convert to fraction form
    86,161.72/129,263.28 = 29,993.56/x
  3. Step 3: Cross multiply
    86,161.72x = 129,263.28 × 29,993.56
  4. Step 4: Simplify right side
    86,161.72x = 3,877,065,944.48
  5. Step 5: Solve for x
    x = 3,877,065,944.48/86,161.72
  6. Step 6: Final answer
    x = 44,997.55

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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.