Home / 86,409.59-129,614.18-33,782.06

Finding the Fourth Proportional to 86,409.59, 129,614.18 and 33,782.06

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Solution

The fourth proportional to 86,409.59, 129,614.18 and 33,782.06 is: 50,673.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,409.59 : 129,614.18 = 33,782.06 : x
  2. Step 2: Convert to fraction form
    86,409.59/129,614.18 = 33,782.06/x
  3. Step 3: Cross multiply
    86,409.59x = 129,614.18 × 33,782.06
  4. Step 4: Simplify right side
    86,409.59x = 4,378,634,160.74
  5. Step 5: Solve for x
    x = 4,378,634,160.74/86,409.59
  6. Step 6: Final answer
    x = 50,673.01

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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.