Home / 85,550.38-128,340.15-26,375.02

Finding the Fourth Proportional to 85,550.38, 128,340.15 and 26,375.02

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Solution

The fourth proportional to 85,550.38, 128,340.15 and 26,375.02 is: 39,567.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,550.38 : 128,340.15 = 26,375.02 : x
  2. Step 2: Convert to fraction form
    85,550.38/128,340.15 = 26,375.02/x
  3. Step 3: Cross multiply
    85,550.38x = 128,340.15 × 26,375.02
  4. Step 4: Simplify right side
    85,550.38x = 3,384,973,603.30
  5. Step 5: Solve for x
    x = 3,384,973,603.30/85,550.38
  6. Step 6: Final answer
    x = 39,567.02

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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.