Home / 57,157.85-85,718.59-53,426.33

Finding the Fourth Proportional to 57,157.85, 85,718.59 and 53,426.33

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Solution

The fourth proportional to 57,157.85, 85,718.59 and 53,426.33 is: 80,122.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,157.85 : 85,718.59 = 53,426.33 : x
  2. Step 2: Convert to fraction form
    57,157.85/85,718.59 = 53,426.33/x
  3. Step 3: Cross multiply
    57,157.85x = 85,718.59 × 53,426.33
  4. Step 4: Simplify right side
    57,157.85x = 4,579,629,314.66
  5. Step 5: Solve for x
    x = 4,579,629,314.66/57,157.85
  6. Step 6: Final answer
    x = 80,122.50

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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.