Home / 66,772.50-92,145.74-36,145.62

Finding the Fourth Proportional to 66,772.50, 92,145.74 and 36,145.62

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Solution

The fourth proportional to 66,772.50, 92,145.74 and 36,145.62 is: 49,880.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,772.50 : 92,145.74 = 36,145.62 : x
  2. Step 2: Convert to fraction form
    66,772.50/92,145.74 = 36,145.62/x
  3. Step 3: Cross multiply
    66,772.50x = 92,145.74 × 36,145.62
  4. Step 4: Simplify right side
    66,772.50x = 3,330,664,902.66
  5. Step 5: Solve for x
    x = 3,330,664,902.66/66,772.50
  6. Step 6: Final answer
    x = 49,880.79

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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.