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Finding the Fourth Proportional to 57,903.21, 86,856.57 and 19,952.01

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Solution

The fourth proportional to 57,903.21, 86,856.57 and 19,952.01 is: 29,928.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,903.21 : 86,856.57 = 19,952.01 : x
  2. Step 2: Convert to fraction form
    57,903.21/86,856.57 = 19,952.01/x
  3. Step 3: Cross multiply
    57,903.21x = 86,856.57 × 19,952.01
  4. Step 4: Simplify right side
    57,903.21x = 1,732,963,153.21
  5. Step 5: Solve for x
    x = 1,732,963,153.21/57,903.21
  6. Step 6: Final answer
    x = 29,928.62

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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.