Home / 83,427.19-115,137.78-47,622.59

Finding the Fourth Proportional to 83,427.19, 115,137.78 and 47,622.59

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Solution

The fourth proportional to 83,427.19, 115,137.78 and 47,622.59 is: 65,723.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,427.19 : 115,137.78 = 47,622.59 : x
  2. Step 2: Convert to fraction form
    83,427.19/115,137.78 = 47,622.59/x
  3. Step 3: Cross multiply
    83,427.19x = 115,137.78 × 47,622.59
  4. Step 4: Simplify right side
    83,427.19x = 5,483,158,714.76
  5. Step 5: Solve for x
    x = 5,483,158,714.76/83,427.19
  6. Step 6: Final answer
    x = 65,723.88

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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.