Home / 57,731.28-86,607.60-18,298.32

Finding the Fourth Proportional to 57,731.28, 86,607.60 and 18,298.32

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Solution

The fourth proportional to 57,731.28, 86,607.60 and 18,298.32 is: 27,450.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,731.28 : 86,607.60 = 18,298.32 : x
  2. Step 2: Convert to fraction form
    57,731.28/86,607.60 = 18,298.32/x
  3. Step 3: Cross multiply
    57,731.28x = 86,607.60 × 18,298.32
  4. Step 4: Simplify right side
    57,731.28x = 1,584,773,579.23
  5. Step 5: Solve for x
    x = 1,584,773,579.23/57,731.28
  6. Step 6: Final answer
    x = 27,450.87

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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.