Home / 86,008.08-129,050.16-33,421.56

Finding the Fourth Proportional to 86,008.08, 129,050.16 and 33,421.56

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Solution

The fourth proportional to 86,008.08, 129,050.16 and 33,421.56 is: 50,147.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,008.08 : 129,050.16 = 33,421.56 : x
  2. Step 2: Convert to fraction form
    86,008.08/129,050.16 = 33,421.56/x
  3. Step 3: Cross multiply
    86,008.08x = 129,050.16 × 33,421.56
  4. Step 4: Simplify right side
    86,008.08x = 4,313,057,665.45
  5. Step 5: Solve for x
    x = 4,313,057,665.45/86,008.08
  6. Step 6: Final answer
    x = 50,147.12

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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.