Home / 69,135.05-95,406.44-38,920.59

Finding the Fourth Proportional to 69,135.05, 95,406.44 and 38,920.59

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Solution

The fourth proportional to 69,135.05, 95,406.44 and 38,920.59 is: 53,710.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,135.05 : 95,406.44 = 38,920.59 : x
  2. Step 2: Convert to fraction form
    69,135.05/95,406.44 = 38,920.59/x
  3. Step 3: Cross multiply
    69,135.05x = 95,406.44 × 38,920.59
  4. Step 4: Simplify right side
    69,135.05x = 3,713,274,740.00
  5. Step 5: Solve for x
    x = 3,713,274,740.00/69,135.05
  6. Step 6: Final answer
    x = 53,710.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.