Home / 85,340.88-128,006.52-26,176.38

Finding the Fourth Proportional to 85,340.88, 128,006.52 and 26,176.38

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Solution

The fourth proportional to 85,340.88, 128,006.52 and 26,176.38 is: 39,263.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,340.88 : 128,006.52 = 26,176.38 : x
  2. Step 2: Convert to fraction form
    85,340.88/128,006.52 = 26,176.38/x
  3. Step 3: Cross multiply
    85,340.88x = 128,006.52 × 26,176.38
  4. Step 4: Simplify right side
    85,340.88x = 3,350,747,310.00
  5. Step 5: Solve for x
    x = 3,350,747,310.00/85,340.88
  6. Step 6: Final answer
    x = 39,263.10

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1.5x scale

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.