Home / 85,556.77-128,353.46-25,589.95

Finding the Fourth Proportional to 85,556.77, 128,353.46 and 25,589.95

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Solution

The fourth proportional to 85,556.77, 128,353.46 and 25,589.95 is: 38,390.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,556.77 : 128,353.46 = 25,589.95 : x
  2. Step 2: Convert to fraction form
    85,556.77/128,353.46 = 25,589.95/x
  3. Step 3: Cross multiply
    85,556.77x = 128,353.46 × 25,589.95
  4. Step 4: Simplify right side
    85,556.77x = 3,284,558,045.93
  5. Step 5: Solve for x
    x = 3,284,558,045.93/85,556.77
  6. Step 6: Final answer
    x = 38,390.40

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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.