Home / 81,158.39-112,070.39-50,583.66

Finding the Fourth Proportional to 81,158.39, 112,070.39 and 50,583.66

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Solution

The fourth proportional to 81,158.39, 112,070.39 and 50,583.66 is: 69,850.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,158.39 : 112,070.39 = 50,583.66 : x
  2. Step 2: Convert to fraction form
    81,158.39/112,070.39 = 50,583.66/x
  3. Step 3: Cross multiply
    81,158.39x = 112,070.39 × 50,583.66
  4. Step 4: Simplify right side
    81,158.39x = 5,668,930,503.83
  5. Step 5: Solve for x
    x = 5,668,930,503.83/81,158.39
  6. Step 6: Final answer
    x = 69,850.21

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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.