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Finding the Fourth Proportional to 57,503.60, 86,204.20 and 51,282.80

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Solution

The fourth proportional to 57,503.60, 86,204.20 and 51,282.80 is: 76,878.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,503.60 : 86,204.20 = 51,282.80 : x
  2. Step 2: Convert to fraction form
    57,503.60/86,204.20 = 51,282.80/x
  3. Step 3: Cross multiply
    57,503.60x = 86,204.20 × 51,282.80
  4. Step 4: Simplify right side
    57,503.60x = 4,420,792,747.76
  5. Step 5: Solve for x
    x = 4,420,792,747.76/57,503.60
  6. Step 6: Final answer
    x = 76,878.54

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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.