Home / 82,588.88-123,715.64-38,153.90

Finding the Fourth Proportional to 82,588.88, 123,715.64 and 38,153.90

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Solution

The fourth proportional to 82,588.88, 123,715.64 and 38,153.90 is: 57,153.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,588.88 : 123,715.64 = 38,153.90 : x
  2. Step 2: Convert to fraction form
    82,588.88/123,715.64 = 38,153.90/x
  3. Step 3: Cross multiply
    82,588.88x = 123,715.64 × 38,153.90
  4. Step 4: Simplify right side
    82,588.88x = 4,720,234,157.00
  5. Step 5: Solve for x
    x = 4,720,234,157.00/82,588.88
  6. Step 6: Final answer
    x = 57,153.39

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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.