Home / 77,186.60-115,593.04-53,427.58

Finding the Fourth Proportional to 77,186.60, 115,593.04 and 53,427.58

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Solution

The fourth proportional to 77,186.60, 115,593.04 and 53,427.58 is: 80,012.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,186.60 : 115,593.04 = 53,427.58 : x
  2. Step 2: Convert to fraction form
    77,186.60/115,593.04 = 53,427.58/x
  3. Step 3: Cross multiply
    77,186.60x = 115,593.04 × 53,427.58
  4. Step 4: Simplify right side
    77,186.60x = 6,175,856,392.04
  5. Step 5: Solve for x
    x = 6,175,856,392.04/77,186.60
  6. Step 6: Final answer
    x = 80,012.03

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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.