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Finding the Fourth Proportional to 66,355.73, 91,573.53 and 38,066.88

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Solution

The fourth proportional to 66,355.73, 91,573.53 and 38,066.88 is: 52,533.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,355.73 : 91,573.53 = 38,066.88 : x
  2. Step 2: Convert to fraction form
    66,355.73/91,573.53 = 38,066.88/x
  3. Step 3: Cross multiply
    66,355.73x = 91,573.53 × 38,066.88
  4. Step 4: Simplify right side
    66,355.73x = 3,485,918,577.69
  5. Step 5: Solve for x
    x = 3,485,918,577.69/66,355.73
  6. Step 6: Final answer
    x = 52,533.80

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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.