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Finding the Fourth Proportional to 65,694.45, 90,658.33 and 35,479.77

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Solution

The fourth proportional to 65,694.45, 90,658.33 and 35,479.77 is: 48,962.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,694.45 : 90,658.33 = 35,479.77 : x
  2. Step 2: Convert to fraction form
    65,694.45/90,658.33 = 35,479.77/x
  3. Step 3: Cross multiply
    65,694.45x = 90,658.33 × 35,479.77
  4. Step 4: Simplify right side
    65,694.45x = 3,216,536,696.98
  5. Step 5: Solve for x
    x = 3,216,536,696.98/65,694.45
  6. Step 6: Final answer
    x = 48,962.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.