Home / 82,709.10-124,114.68-38,327.58

Finding the Fourth Proportional to 82,709.10, 124,114.68 and 38,327.58

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Solution

The fourth proportional to 82,709.10, 124,114.68 and 38,327.58 is: 57,515.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,709.10 : 124,114.68 = 38,327.58 : x
  2. Step 2: Convert to fraction form
    82,709.10/124,114.68 = 38,327.58/x
  3. Step 3: Cross multiply
    82,709.10x = 124,114.68 × 38,327.58
  4. Step 4: Simplify right side
    82,709.10x = 4,757,015,326.87
  5. Step 5: Solve for x
    x = 4,757,015,326.87/82,709.10
  6. Step 6: Final answer
    x = 57,515.02

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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.