Home / 57,818.81-86,765.12-31,523.55

Finding the Fourth Proportional to 57,818.81, 86,765.12 and 31,523.55

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Solution

The fourth proportional to 57,818.81, 86,765.12 and 31,523.55 is: 47,305.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,818.81 : 86,765.12 = 31,523.55 : x
  2. Step 2: Convert to fraction form
    57,818.81/86,765.12 = 31,523.55/x
  3. Step 3: Cross multiply
    57,818.81x = 86,765.12 × 31,523.55
  4. Step 4: Simplify right side
    57,818.81x = 2,735,145,143.20
  5. Step 5: Solve for x
    x = 2,735,145,143.20/57,818.81
  6. Step 6: Final answer
    x = 47,305.45

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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.