Home / 56,222.29-84,304.78-18,768.90

Finding the Fourth Proportional to 56,222.29, 84,304.78 and 18,768.90

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Solution

The fourth proportional to 56,222.29, 84,304.78 and 18,768.90 is: 28,143.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,222.29 : 84,304.78 = 18,768.90 : x
  2. Step 2: Convert to fraction form
    56,222.29/84,304.78 = 18,768.90/x
  3. Step 3: Cross multiply
    56,222.29x = 84,304.78 × 18,768.90
  4. Step 4: Simplify right side
    56,222.29x = 1,582,307,985.34
  5. Step 5: Solve for x
    x = 1,582,307,985.34/56,222.29
  6. Step 6: Final answer
    x = 28,143.78

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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.