Home / 66,772.40-99,996.60-35,538.80

Finding the Fourth Proportional to 66,772.40, 99,996.60 and 35,538.80

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Solution

The fourth proportional to 66,772.40, 99,996.60 and 35,538.80 is: 53,221.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,772.40 : 99,996.60 = 35,538.80 : x
  2. Step 2: Convert to fraction form
    66,772.40/99,996.60 = 35,538.80/x
  3. Step 3: Cross multiply
    66,772.40x = 99,996.60 × 35,538.80
  4. Step 4: Simplify right side
    66,772.40x = 3,553,759,168.08
  5. Step 5: Solve for x
    x = 3,553,759,168.08/66,772.40
  6. Step 6: Final answer
    x = 53,221.98

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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.