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Finding the Fourth Proportional to 57,491.35, 86,250 and 17,513.91

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Solution

The fourth proportional to 57,491.35, 86,250 and 17,513.91 is: 26,274.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,491.35 : 86,250 = 17,513.91 : x
  2. Step 2: Convert to fraction form
    57,491.35/86,250 = 17,513.91/x
  3. Step 3: Cross multiply
    57,491.35x = 86,250 × 17,513.91
  4. Step 4: Simplify right side
    57,491.35x = 1,510,574,737.50
  5. Step 5: Solve for x
    x = 1,510,574,737.50/57,491.35
  6. Step 6: Final answer
    x = 26,274.82

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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.