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Finding the Fourth Proportional to 57,243.77, 85,855.93 and 15,124.31

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Solution

The fourth proportional to 57,243.77, 85,855.93 and 15,124.31 is: 22,683.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,243.77 : 85,855.93 = 15,124.31 : x
  2. Step 2: Convert to fraction form
    57,243.77/85,855.93 = 15,124.31/x
  3. Step 3: Cross multiply
    57,243.77x = 85,855.93 × 15,124.31
  4. Step 4: Simplify right side
    57,243.77x = 1,298,511,700.66
  5. Step 5: Solve for x
    x = 1,298,511,700.66/57,243.77
  6. Step 6: Final answer
    x = 22,683.90

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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.