Home / 85,331.58-128,087.55-47,923.62

Finding the Fourth Proportional to 85,331.58, 128,087.55 and 47,923.62

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Solution

The fourth proportional to 85,331.58, 128,087.55 and 47,923.62 is: 71,936.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,331.58 : 128,087.55 = 47,923.62 : x
  2. Step 2: Convert to fraction form
    85,331.58/128,087.55 = 47,923.62/x
  3. Step 3: Cross multiply
    85,331.58x = 128,087.55 × 47,923.62
  4. Step 4: Simplify right side
    85,331.58x = 6,138,419,072.93
  5. Step 5: Solve for x
    x = 6,138,419,072.93/85,331.58
  6. Step 6: Final answer
    x = 71,936.08

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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.