Home / 80,767.77-121,151.63-21,601.91

Finding the Fourth Proportional to 80,767.77, 121,151.63 and 21,601.91

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Solution

The fourth proportional to 80,767.77, 121,151.63 and 21,601.91 is: 32,402.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,767.77 : 121,151.63 = 21,601.91 : x
  2. Step 2: Convert to fraction form
    80,767.77/121,151.63 = 21,601.91/x
  3. Step 3: Cross multiply
    80,767.77x = 121,151.63 × 21,601.91
  4. Step 4: Simplify right side
    80,767.77x = 2,617,106,607.61
  5. Step 5: Solve for x
    x = 2,617,106,607.61/80,767.77
  6. Step 6: Final answer
    x = 32,402.86

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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.