Home / 85,494.24-117,981.60-47,768.16

Finding the Fourth Proportional to 85,494.24, 117,981.60 and 47,768.16

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Solution

The fourth proportional to 85,494.24, 117,981.60 and 47,768.16 is: 65,919.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,494.24 : 117,981.60 = 47,768.16 : x
  2. Step 2: Convert to fraction form
    85,494.24/117,981.60 = 47,768.16/x
  3. Step 3: Cross multiply
    85,494.24x = 117,981.60 × 47,768.16
  4. Step 4: Simplify right side
    85,494.24x = 5,635,763,945.86
  5. Step 5: Solve for x
    x = 5,635,763,945.86/85,494.24
  6. Step 6: Final answer
    x = 65,919.81

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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.