Home / 81,595.09-122,366.71-26,178.13

Finding the Fourth Proportional to 81,595.09, 122,366.71 and 26,178.13

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Solution

The fourth proportional to 81,595.09, 122,366.71 and 26,178.13 is: 39,258.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,595.09 : 122,366.71 = 26,178.13 : x
  2. Step 2: Convert to fraction form
    81,595.09/122,366.71 = 26,178.13/x
  3. Step 3: Cross multiply
    81,595.09x = 122,366.71 × 26,178.13
  4. Step 4: Simplify right side
    81,595.09x = 3,203,330,899.33
  5. Step 5: Solve for x
    x = 3,203,330,899.33/81,595.09
  6. Step 6: Final answer
    x = 39,258.87

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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.