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Finding the Fourth Proportional to 64,694.35, 96,950.40 and 51,390.10

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Solution

The fourth proportional to 64,694.35, 96,950.40 and 51,390.10 is: 77,012.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,694.35 : 96,950.40 = 51,390.10 : x
  2. Step 2: Convert to fraction form
    64,694.35/96,950.40 = 51,390.10/x
  3. Step 3: Cross multiply
    64,694.35x = 96,950.40 × 51,390.10
  4. Step 4: Simplify right side
    64,694.35x = 4,982,290,751.04
  5. Step 5: Solve for x
    x = 4,982,290,751.04/64,694.35
  6. Step 6: Final answer
    x = 77,012.76

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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.