Home / 66,386.76-91,612.84-36,173.32

Finding the Fourth Proportional to 66,386.76, 91,612.84 and 36,173.32

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Solution

The fourth proportional to 66,386.76, 91,612.84 and 36,173.32 is: 49,918.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,386.76 : 91,612.84 = 36,173.32 : x
  2. Step 2: Convert to fraction form
    66,386.76/91,612.84 = 36,173.32/x
  3. Step 3: Cross multiply
    66,386.76x = 91,612.84 × 36,173.32
  4. Step 4: Simplify right side
    66,386.76x = 3,313,940,577.43
  5. Step 5: Solve for x
    x = 3,313,940,577.43/66,386.76
  6. Step 6: Final answer
    x = 49,918.70

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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.