Home / 51,157.68-76,731.02-13,721.48

Finding the Fourth Proportional to 51,157.68, 76,731.02 and 13,721.48

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Solution

The fourth proportional to 51,157.68, 76,731.02 and 13,721.48 is: 20,580.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,157.68 : 76,731.02 = 13,721.48 : x
  2. Step 2: Convert to fraction form
    51,157.68/76,731.02 = 13,721.48/x
  3. Step 3: Cross multiply
    51,157.68x = 76,731.02 × 13,721.48
  4. Step 4: Simplify right side
    51,157.68x = 1,052,863,156.31
  5. Step 5: Solve for x
    x = 1,052,863,156.31/51,157.68
  6. Step 6: Final answer
    x = 20,580.74

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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.