Home / 75,429.65-113,144.48-19,269.89

Finding the Fourth Proportional to 75,429.65, 113,144.48 and 19,269.89

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Solution

The fourth proportional to 75,429.65, 113,144.48 and 19,269.89 is: 28,904.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,429.65 : 113,144.48 = 19,269.89 : x
  2. Step 2: Convert to fraction form
    75,429.65/113,144.48 = 19,269.89/x
  3. Step 3: Cross multiply
    75,429.65x = 113,144.48 × 19,269.89
  4. Step 4: Simplify right side
    75,429.65x = 2,180,281,518.19
  5. Step 5: Solve for x
    x = 2,180,281,518.19/75,429.65
  6. Step 6: Final answer
    x = 28,904.83

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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.