Home / 86,208.81-129,315.39-23,879.85

Finding the Fourth Proportional to 86,208.81, 129,315.39 and 23,879.85

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Solution

The fourth proportional to 86,208.81, 129,315.39 and 23,879.85 is: 35,820.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,208.81 : 129,315.39 = 23,879.85 : x
  2. Step 2: Convert to fraction form
    86,208.81/129,315.39 = 23,879.85/x
  3. Step 3: Cross multiply
    86,208.81x = 129,315.39 × 23,879.85
  4. Step 4: Simplify right side
    86,208.81x = 3,088,032,115.89
  5. Step 5: Solve for x
    x = 3,088,032,115.89/86,208.81
  6. Step 6: Final answer
    x = 35,820.38

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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.