Home / 57,220.48-85,855.38-30,943.72

Finding the Fourth Proportional to 57,220.48, 85,855.38 and 30,943.72

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Solution

The fourth proportional to 57,220.48, 85,855.38 and 30,943.72 is: 46,428.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,220.48 : 85,855.38 = 30,943.72 : x
  2. Step 2: Convert to fraction form
    57,220.48/85,855.38 = 30,943.72/x
  3. Step 3: Cross multiply
    57,220.48x = 85,855.38 × 30,943.72
  4. Step 4: Simplify right side
    57,220.48x = 2,656,684,839.21
  5. Step 5: Solve for x
    x = 2,656,684,839.21/57,220.48
  6. Step 6: Final answer
    x = 46,428.92

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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.