Home / 45,712.18-68,576.85-20,753.98

Finding the Fourth Proportional to 45,712.18, 68,576.85 and 20,753.98

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Solution

The fourth proportional to 45,712.18, 68,576.85 and 20,753.98 is: 31,134.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,712.18 : 68,576.85 = 20,753.98 : x
  2. Step 2: Convert to fraction form
    45,712.18/68,576.85 = 20,753.98/x
  3. Step 3: Cross multiply
    45,712.18x = 68,576.85 × 20,753.98
  4. Step 4: Simplify right side
    45,712.18x = 1,423,242,573.36
  5. Step 5: Solve for x
    x = 1,423,242,573.36/45,712.18
  6. Step 6: Final answer
    x = 31,134.87

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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.