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Finding the Fourth Proportional to 53,777.60, 80,860.80 and 52,611.20

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Solution

The fourth proportional to 53,777.60, 80,860.80 and 52,611.20 is: 79,106.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,777.60 : 80,860.80 = 52,611.20 : x
  2. Step 2: Convert to fraction form
    53,777.60/80,860.80 = 52,611.20/x
  3. Step 3: Cross multiply
    53,777.60x = 80,860.80 × 52,611.20
  4. Step 4: Simplify right side
    53,777.60x = 4,254,183,720.96
  5. Step 5: Solve for x
    x = 4,254,183,720.96/53,777.60
  6. Step 6: Final answer
    x = 79,106.98

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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.