Home / 82,017.62-122,982.68-42,476.66

Finding the Fourth Proportional to 82,017.62, 122,982.68 and 42,476.66

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Solution

The fourth proportional to 82,017.62, 122,982.68 and 42,476.66 is: 63,692.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,017.62 : 122,982.68 = 42,476.66 : x
  2. Step 2: Convert to fraction form
    82,017.62/122,982.68 = 42,476.66/x
  3. Step 3: Cross multiply
    82,017.62x = 122,982.68 × 42,476.66
  4. Step 4: Simplify right side
    82,017.62x = 5,223,892,975.53
  5. Step 5: Solve for x
    x = 5,223,892,975.53/82,017.62
  6. Step 6: Final answer
    x = 63,692.33

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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.