Home / 57,103.79-85,626.10-30,442.60

Finding the Fourth Proportional to 57,103.79, 85,626.10 and 30,442.60

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Solution

The fourth proportional to 57,103.79, 85,626.10 and 30,442.60 is: 45,648.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,103.79 : 85,626.10 = 30,442.60 : x
  2. Step 2: Convert to fraction form
    57,103.79/85,626.10 = 30,442.60/x
  3. Step 3: Cross multiply
    57,103.79x = 85,626.10 × 30,442.60
  4. Step 4: Simplify right side
    57,103.79x = 2,606,681,394.75
  5. Step 5: Solve for x
    x = 2,606,681,394.75/57,103.79
  6. Step 6: Final answer
    x = 45,648.14

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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.