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Finding the Fourth Proportional to 67,200.78, 92,737.09 and 36,986.10

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Solution

The fourth proportional to 67,200.78, 92,737.09 and 36,986.10 is: 51,040.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,200.78 : 92,737.09 = 36,986.10 : x
  2. Step 2: Convert to fraction form
    67,200.78/92,737.09 = 36,986.10/x
  3. Step 3: Cross multiply
    67,200.78x = 92,737.09 × 36,986.10
  4. Step 4: Simplify right side
    67,200.78x = 3,429,983,284.45
  5. Step 5: Solve for x
    x = 3,429,983,284.45/67,200.78
  6. Step 6: Final answer
    x = 51,040.83

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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.