Home / 86,555.55-129,811.05-33,965.49

Finding the Fourth Proportional to 86,555.55, 129,811.05 and 33,965.49

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Solution

The fourth proportional to 86,555.55, 129,811.05 and 33,965.49 is: 50,939.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,555.55 : 129,811.05 = 33,965.49 : x
  2. Step 2: Convert to fraction form
    86,555.55/129,811.05 = 33,965.49/x
  3. Step 3: Cross multiply
    86,555.55x = 129,811.05 × 33,965.49
  4. Step 4: Simplify right side
    86,555.55x = 4,409,095,920.66
  5. Step 5: Solve for x
    x = 4,409,095,920.66/86,555.55
  6. Step 6: Final answer
    x = 50,939.49

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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.