Home / 66,727.14-92,080.71-39,884.45

Finding the Fourth Proportional to 66,727.14, 92,080.71 and 39,884.45

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Solution

The fourth proportional to 66,727.14, 92,080.71 and 39,884.45 is: 55,038.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,727.14 : 92,080.71 = 39,884.45 : x
  2. Step 2: Convert to fraction form
    66,727.14/92,080.71 = 39,884.45/x
  3. Step 3: Cross multiply
    66,727.14x = 92,080.71 × 39,884.45
  4. Step 4: Simplify right side
    66,727.14x = 3,672,588,587.60
  5. Step 5: Solve for x
    x = 3,672,588,587.60/66,727.14
  6. Step 6: Final answer
    x = 55,038.90

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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.