Home / 66,767.88-92,139.48-38,473.50

Finding the Fourth Proportional to 66,767.88, 92,139.48 and 38,473.50

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Solution

The fourth proportional to 66,767.88, 92,139.48 and 38,473.50 is: 53,093.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,767.88 : 92,139.48 = 38,473.50 : x
  2. Step 2: Convert to fraction form
    66,767.88/92,139.48 = 38,473.50/x
  3. Step 3: Cross multiply
    66,767.88x = 92,139.48 × 38,473.50
  4. Step 4: Simplify right side
    66,767.88x = 3,544,928,283.78
  5. Step 5: Solve for x
    x = 3,544,928,283.78/66,767.88
  6. Step 6: Final answer
    x = 53,093.32

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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.