Home / 81,550.67-122,225.60-38,878.58

Finding the Fourth Proportional to 81,550.67, 122,225.60 and 38,878.58

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Solution

The fourth proportional to 81,550.67, 122,225.60 and 38,878.58 is: 58,270.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,550.67 : 122,225.60 = 38,878.58 : x
  2. Step 2: Convert to fraction form
    81,550.67/122,225.60 = 38,878.58/x
  3. Step 3: Cross multiply
    81,550.67x = 122,225.60 × 38,878.58
  4. Step 4: Simplify right side
    81,550.67x = 4,751,957,767.65
  5. Step 5: Solve for x
    x = 4,751,957,767.65/81,550.67
  6. Step 6: Final answer
    x = 58,270.00

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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.