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Finding the Fourth Proportional to 56,951.24, 85,478.96 and 28,890.68

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Solution

The fourth proportional to 56,951.24, 85,478.96 and 28,890.68 is: 43,362.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,951.24 : 85,478.96 = 28,890.68 : x
  2. Step 2: Convert to fraction form
    56,951.24/85,478.96 = 28,890.68/x
  3. Step 3: Cross multiply
    56,951.24x = 85,478.96 × 28,890.68
  4. Step 4: Simplify right side
    56,951.24x = 2,469,545,280.09
  5. Step 5: Solve for x
    x = 2,469,545,280.09/56,951.24
  6. Step 6: Final answer
    x = 43,362.45

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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.