Home / 66,386.35-91,612.01-36,171.92

Finding the Fourth Proportional to 66,386.35, 91,612.01 and 36,171.92

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Solution

The fourth proportional to 66,386.35, 91,612.01 and 36,171.92 is: 49,916.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,386.35 : 91,612.01 = 36,171.92 : x
  2. Step 2: Convert to fraction form
    66,386.35/91,612.01 = 36,171.92/x
  3. Step 3: Cross multiply
    66,386.35x = 91,612.01 × 36,171.92
  4. Step 4: Simplify right side
    66,386.35x = 3,313,782,296.76
  5. Step 5: Solve for x
    x = 3,313,782,296.76/66,386.35
  6. Step 6: Final answer
    x = 49,916.62

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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.