Home / 57,904.21-86,855.40-18,461.06

Finding the Fourth Proportional to 57,904.21, 86,855.40 and 18,461.06

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Solution

The fourth proportional to 57,904.21, 86,855.40 and 18,461.06 is: 27,691.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,904.21 : 86,855.40 = 18,461.06 : x
  2. Step 2: Convert to fraction form
    57,904.21/86,855.40 = 18,461.06/x
  3. Step 3: Cross multiply
    57,904.21x = 86,855.40 × 18,461.06
  4. Step 4: Simplify right side
    57,904.21x = 1,603,442,316.45
  5. Step 5: Solve for x
    x = 1,603,442,316.45/57,904.21
  6. Step 6: Final answer
    x = 27,691.29

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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.