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Finding the Fourth Proportional to 66,340.59, 91,550.90 and 37,658.09

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Solution

The fourth proportional to 66,340.59, 91,550.90 and 37,658.09 is: 51,968.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,340.59 : 91,550.90 = 37,658.09 : x
  2. Step 2: Convert to fraction form
    66,340.59/91,550.90 = 37,658.09/x
  3. Step 3: Cross multiply
    66,340.59x = 91,550.90 × 37,658.09
  4. Step 4: Simplify right side
    66,340.59x = 3,447,631,832.53
  5. Step 5: Solve for x
    x = 3,447,631,832.53/66,340.59
  6. Step 6: Final answer
    x = 51,968.66

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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.