Home / 85,039.38-117,355.21-48,740.04

Finding the Fourth Proportional to 85,039.38, 117,355.21 and 48,740.04

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Solution

The fourth proportional to 85,039.38, 117,355.21 and 48,740.04 is: 67,261.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,039.38 : 117,355.21 = 48,740.04 : x
  2. Step 2: Convert to fraction form
    85,039.38/117,355.21 = 48,740.04/x
  3. Step 3: Cross multiply
    85,039.38x = 117,355.21 × 48,740.04
  4. Step 4: Simplify right side
    85,039.38x = 5,719,897,507.76
  5. Step 5: Solve for x
    x = 5,719,897,507.76/85,039.38
  6. Step 6: Final answer
    x = 67,261.75

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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.