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Finding the Fourth Proportional to 57,609.60, 86,394.60 and 28,008.36

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Solution

The fourth proportional to 57,609.60, 86,394.60 and 28,008.36 is: 42,002.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,609.60 : 86,394.60 = 28,008.36 : x
  2. Step 2: Convert to fraction form
    57,609.60/86,394.60 = 28,008.36/x
  3. Step 3: Cross multiply
    57,609.60x = 86,394.60 × 28,008.36
  4. Step 4: Simplify right side
    57,609.60x = 2,419,771,058.86
  5. Step 5: Solve for x
    x = 2,419,771,058.86/57,609.60
  6. Step 6: Final answer
    x = 42,002.91

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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.