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Finding the Fourth Proportional to 67,285.80, 92,865.32 and 39,007.84

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Solution

The fourth proportional to 67,285.80, 92,865.32 and 39,007.84 is: 53,837.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,285.80 : 92,865.32 = 39,007.84 : x
  2. Step 2: Convert to fraction form
    67,285.80/92,865.32 = 39,007.84/x
  3. Step 3: Cross multiply
    67,285.80x = 92,865.32 × 39,007.84
  4. Step 4: Simplify right side
    67,285.80x = 3,622,475,544.11
  5. Step 5: Solve for x
    x = 3,622,475,544.11/67,285.80
  6. Step 6: Final answer
    x = 53,837.15

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1.5x scale

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.