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Finding the Fourth Proportional to 57,366.70, 86,037.06 and 21,815.30

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Solution

The fourth proportional to 57,366.70, 86,037.06 and 21,815.30 is: 32,718.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,366.70 : 86,037.06 = 21,815.30 : x
  2. Step 2: Convert to fraction form
    57,366.70/86,037.06 = 21,815.30/x
  3. Step 3: Cross multiply
    57,366.70x = 86,037.06 × 21,815.30
  4. Step 4: Simplify right side
    57,366.70x = 1,876,924,275.02
  5. Step 5: Solve for x
    x = 1,876,924,275.02/57,366.70
  6. Step 6: Final answer
    x = 32,718.01

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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.