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Finding the Fourth Proportional to 57,743.60, 86,615.40 and 36,748.40

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Solution

The fourth proportional to 57,743.60, 86,615.40 and 36,748.40 is: 55,122.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,743.60 : 86,615.40 = 36,748.40 : x
  2. Step 2: Convert to fraction form
    57,743.60/86,615.40 = 36,748.40/x
  3. Step 3: Cross multiply
    57,743.60x = 86,615.40 × 36,748.40
  4. Step 4: Simplify right side
    57,743.60x = 3,182,977,365.36
  5. Step 5: Solve for x
    x = 3,182,977,365.36/57,743.60
  6. Step 6: Final answer
    x = 55,122.60

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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.