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Finding the Fourth Proportional to 57,206.88, 85,834.08 and 30,880.80

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Solution

The fourth proportional to 57,206.88, 85,834.08 and 30,880.80 is: 46,334.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,206.88 : 85,834.08 = 30,880.80 : x
  2. Step 2: Convert to fraction form
    57,206.88/85,834.08 = 30,880.80/x
  3. Step 3: Cross multiply
    57,206.88x = 85,834.08 × 30,880.80
  4. Step 4: Simplify right side
    57,206.88x = 2,650,625,057.66
  5. Step 5: Solve for x
    x = 2,650,625,057.66/57,206.88
  6. Step 6: Final answer
    x = 46,334.03

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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.