Home / 71,153.74-98,186.28-39,322.56

Finding the Fourth Proportional to 71,153.74, 98,186.28 and 39,322.56

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Solution

The fourth proportional to 71,153.74, 98,186.28 and 39,322.56 is: 54,261.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,153.74 : 98,186.28 = 39,322.56 : x
  2. Step 2: Convert to fraction form
    71,153.74/98,186.28 = 39,322.56/x
  3. Step 3: Cross multiply
    71,153.74x = 98,186.28 × 39,322.56
  4. Step 4: Simplify right side
    71,153.74x = 3,860,936,107.22
  5. Step 5: Solve for x
    x = 3,860,936,107.22/71,153.74
  6. Step 6: Final answer
    x = 54,261.88

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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.