Home / 88,330.14-121,914.44-54,338.69

Finding the Fourth Proportional to 88,330.14, 121,914.44 and 54,338.69

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Solution

The fourth proportional to 88,330.14, 121,914.44 and 54,338.69 is: 74,998.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,330.14 : 121,914.44 = 54,338.69 : x
  2. Step 2: Convert to fraction form
    88,330.14/121,914.44 = 54,338.69/x
  3. Step 3: Cross multiply
    88,330.14x = 121,914.44 × 54,338.69
  4. Step 4: Simplify right side
    88,330.14x = 6,624,670,080.42
  5. Step 5: Solve for x
    x = 6,624,670,080.42/88,330.14
  6. Step 6: Final answer
    x = 74,998.98

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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.