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Finding the Fourth Proportional to 57,878.28, 79,873.56 and 32,728.32

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Solution

The fourth proportional to 57,878.28, 79,873.56 and 32,728.32 is: 45,165.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,878.28 : 79,873.56 = 32,728.32 : x
  2. Step 2: Convert to fraction form
    57,878.28/79,873.56 = 32,728.32/x
  3. Step 3: Cross multiply
    57,878.28x = 79,873.56 × 32,728.32
  4. Step 4: Simplify right side
    57,878.28x = 2,614,127,431.22
  5. Step 5: Solve for x
    x = 2,614,127,431.22/57,878.28
  6. Step 6: Final answer
    x = 45,165.95

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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.