Home / 71,883.06-99,199.32-39,618.84

Finding the Fourth Proportional to 71,883.06, 99,199.32 and 39,618.84

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Solution

The fourth proportional to 71,883.06, 99,199.32 and 39,618.84 is: 54,674.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,883.06 : 99,199.32 = 39,618.84 : x
  2. Step 2: Convert to fraction form
    71,883.06/99,199.32 = 39,618.84/x
  3. Step 3: Cross multiply
    71,883.06x = 99,199.32 × 39,618.84
  4. Step 4: Simplify right side
    71,883.06x = 3,930,161,987.19
  5. Step 5: Solve for x
    x = 3,930,161,987.19/71,883.06
  6. Step 6: Final answer
    x = 54,674.38

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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.