Home / 83,157.78-114,725.16-51,271.32

Finding the Fourth Proportional to 83,157.78, 114,725.16 and 51,271.32

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Solution

The fourth proportional to 83,157.78, 114,725.16 and 51,271.32 is: 70,734.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,157.78 : 114,725.16 = 51,271.32 : x
  2. Step 2: Convert to fraction form
    83,157.78/114,725.16 = 51,271.32/x
  3. Step 3: Cross multiply
    83,157.78x = 114,725.16 × 51,271.32
  4. Step 4: Simplify right side
    83,157.78x = 5,882,110,390.41
  5. Step 5: Solve for x
    x = 5,882,110,390.41/83,157.78
  6. Step 6: Final answer
    x = 70,734.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.