Home / 64,788-96,962.55-39,843.87

Finding the Fourth Proportional to 64,788, 96,962.55 and 39,843.87

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Solution

The fourth proportional to 64,788, 96,962.55 and 39,843.87 is: 59,630.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,788 : 96,962.55 = 39,843.87 : x
  2. Step 2: Convert to fraction form
    64,788/96,962.55 = 39,843.87/x
  3. Step 3: Cross multiply
    64,788x = 96,962.55 × 39,843.87
  4. Step 4: Simplify right side
    64,788x = 3,863,363,237.07
  5. Step 5: Solve for x
    x = 3,863,363,237.07/64,788
  6. Step 6: Final answer
    x = 59,630.85

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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.