Home / 57,206.66-78,943.77-31,712.55

Finding the Fourth Proportional to 57,206.66, 78,943.77 and 31,712.55

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Solution

The fourth proportional to 57,206.66, 78,943.77 and 31,712.55 is: 43,762.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,206.66 : 78,943.77 = 31,712.55 : x
  2. Step 2: Convert to fraction form
    57,206.66/78,943.77 = 31,712.55/x
  3. Step 3: Cross multiply
    57,206.66x = 78,943.77 × 31,712.55
  4. Step 4: Simplify right side
    57,206.66x = 2,503,508,253.31
  5. Step 5: Solve for x
    x = 2,503,508,253.31/57,206.66
  6. Step 6: Final answer
    x = 43,762.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.