Home / 66,006.28-91,059.15-39,149.92

Finding the Fourth Proportional to 66,006.28, 91,059.15 and 39,149.92

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Solution

The fourth proportional to 66,006.28, 91,059.15 and 39,149.92 is: 54,009.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,006.28 : 91,059.15 = 39,149.92 : x
  2. Step 2: Convert to fraction form
    66,006.28/91,059.15 = 39,149.92/x
  3. Step 3: Cross multiply
    66,006.28x = 91,059.15 × 39,149.92
  4. Step 4: Simplify right side
    66,006.28x = 3,564,958,437.77
  5. Step 5: Solve for x
    x = 3,564,958,437.77/66,006.28
  6. Step 6: Final answer
    x = 54,009.38

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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.