Home / 66,771.40-92,139.08-38,090.92

Finding the Fourth Proportional to 66,771.40, 92,139.08 and 38,090.92

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Solution

The fourth proportional to 66,771.40, 92,139.08 and 38,090.92 is: 52,562.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,771.40 : 92,139.08 = 38,090.92 : x
  2. Step 2: Convert to fraction form
    66,771.40/92,139.08 = 38,090.92/x
  3. Step 3: Cross multiply
    66,771.40x = 92,139.08 × 38,090.92
  4. Step 4: Simplify right side
    66,771.40x = 3,509,662,325.15
  5. Step 5: Solve for x
    x = 3,509,662,325.15/66,771.40
  6. Step 6: Final answer
    x = 52,562.36

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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.