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Finding the Fourth Proportional to 95,578.79, 143,385.53 and 39,387.67

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Solution

The fourth proportional to 95,578.79, 143,385.53 and 39,387.67 is: 59,088.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,578.79 : 143,385.53 = 39,387.67 : x
  2. Step 2: Convert to fraction form
    95,578.79/143,385.53 = 39,387.67/x
  3. Step 3: Cross multiply
    95,578.79x = 143,385.53 × 39,387.67
  4. Step 4: Simplify right side
    95,578.79x = 5,647,621,383.01
  5. Step 5: Solve for x
    x = 5,647,621,383.01/95,578.79
  6. Step 6: Final answer
    x = 59,088.65

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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.