Home / 75,865.33-113,798.05-19,700.72

Finding the Fourth Proportional to 75,865.33, 113,798.05 and 19,700.72

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Solution

The fourth proportional to 75,865.33, 113,798.05 and 19,700.72 is: 29,551.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,865.33 : 113,798.05 = 19,700.72 : x
  2. Step 2: Convert to fraction form
    75,865.33/113,798.05 = 19,700.72/x
  3. Step 3: Cross multiply
    75,865.33x = 113,798.05 × 19,700.72
  4. Step 4: Simplify right side
    75,865.33x = 2,241,903,519.60
  5. Step 5: Solve for x
    x = 2,241,903,519.60/75,865.33
  6. Step 6: Final answer
    x = 29,551.09

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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.