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Finding the Fourth Proportional to 66,913.74, 100,370.43 and 36,926.55

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Solution

The fourth proportional to 66,913.74, 100,370.43 and 36,926.55 is: 55,389.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,913.74 : 100,370.43 = 36,926.55 : x
  2. Step 2: Convert to fraction form
    66,913.74/100,370.43 = 36,926.55/x
  3. Step 3: Cross multiply
    66,913.74x = 100,370.43 × 36,926.55
  4. Step 4: Simplify right side
    66,913.74x = 3,706,333,701.92
  5. Step 5: Solve for x
    x = 3,706,333,701.92/66,913.74
  6. Step 6: Final answer
    x = 55,389.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.