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Finding the Fourth Proportional to 66,000.96, 91,080.76 and 37,326.25

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Solution

The fourth proportional to 66,000.96, 91,080.76 and 37,326.25 is: 51,509.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,000.96 : 91,080.76 = 37,326.25 : x
  2. Step 2: Convert to fraction form
    66,000.96/91,080.76 = 37,326.25/x
  3. Step 3: Cross multiply
    66,000.96x = 91,080.76 × 37,326.25
  4. Step 4: Simplify right side
    66,000.96x = 3,399,703,217.95
  5. Step 5: Solve for x
    x = 3,399,703,217.95/66,000.96
  6. Step 6: Final answer
    x = 51,509.91

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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.