Home / 66,816.05-92,207.84-38,139.62

Finding the Fourth Proportional to 66,816.05, 92,207.84 and 38,139.62

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Solution

The fourth proportional to 66,816.05, 92,207.84 and 38,139.62 is: 52,633.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,816.05 : 92,207.84 = 38,139.62 : x
  2. Step 2: Convert to fraction form
    66,816.05/92,207.84 = 38,139.62/x
  3. Step 3: Cross multiply
    66,816.05x = 92,207.84 × 38,139.62
  4. Step 4: Simplify right side
    66,816.05x = 3,516,771,326.88
  5. Step 5: Solve for x
    x = 3,516,771,326.88/66,816.05
  6. Step 6: Final answer
    x = 52,633.64

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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.