Home / 85,934.71-128,919.08-26,767.86

Finding the Fourth Proportional to 85,934.71, 128,919.08 and 26,767.86

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Solution

The fourth proportional to 85,934.71, 128,919.08 and 26,767.86 is: 40,157.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,934.71 : 128,919.08 = 26,767.86 : x
  2. Step 2: Convert to fraction form
    85,934.71/128,919.08 = 26,767.86/x
  3. Step 3: Cross multiply
    85,934.71x = 128,919.08 × 26,767.86
  4. Step 4: Simplify right side
    85,934.71x = 3,450,887,884.77
  5. Step 5: Solve for x
    x = 3,450,887,884.77/85,934.71
  6. Step 6: Final answer
    x = 40,157.09

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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.