Home / 57,621.32-86,431.12-35,138.60

Finding the Fourth Proportional to 57,621.32, 86,431.12 and 35,138.60

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Solution

The fourth proportional to 57,621.32, 86,431.12 and 35,138.60 is: 52,707.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,621.32 : 86,431.12 = 35,138.60 : x
  2. Step 2: Convert to fraction form
    57,621.32/86,431.12 = 35,138.60/x
  3. Step 3: Cross multiply
    57,621.32x = 86,431.12 × 35,138.60
  4. Step 4: Simplify right side
    57,621.32x = 3,037,068,377.54
  5. Step 5: Solve for x
    x = 3,037,068,377.54/57,621.32
  6. Step 6: Final answer
    x = 52,707.38

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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.