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Finding the Fourth Proportional to 93,611.60, 140,125.80 and 54,051.20

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Solution

The fourth proportional to 93,611.60, 140,125.80 and 54,051.20 is: 80,908.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,611.60 : 140,125.80 = 54,051.20 : x
  2. Step 2: Convert to fraction form
    93,611.60/140,125.80 = 54,051.20/x
  3. Step 3: Cross multiply
    93,611.60x = 140,125.80 × 54,051.20
  4. Step 4: Simplify right side
    93,611.60x = 7,573,967,640.96
  5. Step 5: Solve for x
    x = 7,573,967,640.96/93,611.60
  6. Step 6: Final answer
    x = 80,908.43

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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.