Home / 85,321.04-127,981.60-43,741.52

Finding the Fourth Proportional to 85,321.04, 127,981.60 and 43,741.52

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Solution

The fourth proportional to 85,321.04, 127,981.60 and 43,741.52 is: 65,612.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,321.04 : 127,981.60 = 43,741.52 : x
  2. Step 2: Convert to fraction form
    85,321.04/127,981.60 = 43,741.52/x
  3. Step 3: Cross multiply
    85,321.04x = 127,981.60 × 43,741.52
  4. Step 4: Simplify right side
    85,321.04x = 5,598,109,716.03
  5. Step 5: Solve for x
    x = 5,598,109,716.03/85,321.04
  6. Step 6: Final answer
    x = 65,612.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.