Home / 40,139.12-55,429.50-25,823.85

Finding the Fourth Proportional to 40,139.12, 55,429.50 and 25,823.85

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Solution

The fourth proportional to 40,139.12, 55,429.50 and 25,823.85 is: 35,661.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,139.12 : 55,429.50 = 25,823.85 : x
  2. Step 2: Convert to fraction form
    40,139.12/55,429.50 = 25,823.85/x
  3. Step 3: Cross multiply
    40,139.12x = 55,429.50 × 25,823.85
  4. Step 4: Simplify right side
    40,139.12x = 1,431,403,093.58
  5. Step 5: Solve for x
    x = 1,431,403,093.58/40,139.12
  6. Step 6: Final answer
    x = 35,661.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.