Home / 66,812.05-92,208.41-38,518.75

Finding the Fourth Proportional to 66,812.05, 92,208.41 and 38,518.75

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Solution

The fourth proportional to 66,812.05, 92,208.41 and 38,518.75 is: 53,160.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,812.05 : 92,208.41 = 38,518.75 : x
  2. Step 2: Convert to fraction form
    66,812.05/92,208.41 = 38,518.75/x
  3. Step 3: Cross multiply
    66,812.05x = 92,208.41 × 38,518.75
  4. Step 4: Simplify right side
    66,812.05x = 3,551,752,692.69
  5. Step 5: Solve for x
    x = 3,551,752,692.69/66,812.05
  6. Step 6: Final answer
    x = 53,160.36

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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.