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Finding the Fourth Proportional to 66,972.30, 100,373.40 and 33,701.55

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Solution

The fourth proportional to 66,972.30, 100,373.40 and 33,701.55 is: 50,509.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,972.30 : 100,373.40 = 33,701.55 : x
  2. Step 2: Convert to fraction form
    66,972.30/100,373.40 = 33,701.55/x
  3. Step 3: Cross multiply
    66,972.30x = 100,373.40 × 33,701.55
  4. Step 4: Simplify right side
    66,972.30x = 3,382,739,158.77
  5. Step 5: Solve for x
    x = 3,382,739,158.77/66,972.30
  6. Step 6: Final answer
    x = 50,509.53

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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.