Home / 75,788.55-113,683.20-19,624.72

Finding the Fourth Proportional to 75,788.55, 113,683.20 and 19,624.72

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Solution

The fourth proportional to 75,788.55, 113,683.20 and 19,624.72 is: 29,437.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,788.55 : 113,683.20 = 19,624.72 : x
  2. Step 2: Convert to fraction form
    75,788.55/113,683.20 = 19,624.72/x
  3. Step 3: Cross multiply
    75,788.55x = 113,683.20 × 19,624.72
  4. Step 4: Simplify right side
    75,788.55x = 2,231,000,968.70
  5. Step 5: Solve for x
    x = 2,231,000,968.70/75,788.55
  6. Step 6: Final answer
    x = 29,437.18

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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.