Home / 57,629.72-86,288.70-29,869.40

Finding the Fourth Proportional to 57,629.72, 86,288.70 and 29,869.40

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Solution

The fourth proportional to 57,629.72, 86,288.70 and 29,869.40 is: 44,723.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,629.72 : 86,288.70 = 29,869.40 : x
  2. Step 2: Convert to fraction form
    57,629.72/86,288.70 = 29,869.40/x
  3. Step 3: Cross multiply
    57,629.72x = 86,288.70 × 29,869.40
  4. Step 4: Simplify right side
    57,629.72x = 2,577,391,695.78
  5. Step 5: Solve for x
    x = 2,577,391,695.78/57,629.72
  6. Step 6: Final answer
    x = 44,723.31

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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.