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Finding the Fourth Proportional to 57,500.58, 86,243.54 and 42,731.04

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Solution

The fourth proportional to 57,500.58, 86,243.54 and 42,731.04 is: 64,091.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,500.58 : 86,243.54 = 42,731.04 : x
  2. Step 2: Convert to fraction form
    57,500.58/86,243.54 = 42,731.04/x
  3. Step 3: Cross multiply
    57,500.58x = 86,243.54 × 42,731.04
  4. Step 4: Simplify right side
    57,500.58x = 3,685,276,157.48
  5. Step 5: Solve for x
    x = 3,685,276,157.48/57,500.58
  6. Step 6: Final answer
    x = 64,091.11

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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.