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Finding the Fourth Proportional to 66,780.57, 92,157.21 and 36,565.92

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Solution

The fourth proportional to 66,780.57, 92,157.21 and 36,565.92 is: 50,460.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,780.57 : 92,157.21 = 36,565.92 : x
  2. Step 2: Convert to fraction form
    66,780.57/92,157.21 = 36,565.92/x
  3. Step 3: Cross multiply
    66,780.57x = 92,157.21 × 36,565.92
  4. Step 4: Simplify right side
    66,780.57x = 3,369,813,168.28
  5. Step 5: Solve for x
    x = 3,369,813,168.28/66,780.57
  6. Step 6: Final answer
    x = 50,460.98

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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.