Home / 81,234.83-112,114.51-45,426.85

Finding the Fourth Proportional to 81,234.83, 112,114.51 and 45,426.85

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Solution

The fourth proportional to 81,234.83, 112,114.51 and 45,426.85 is: 62,694.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,234.83 : 112,114.51 = 45,426.85 : x
  2. Step 2: Convert to fraction form
    81,234.83/112,114.51 = 45,426.85/x
  3. Step 3: Cross multiply
    81,234.83x = 112,114.51 × 45,426.85
  4. Step 4: Simplify right side
    81,234.83x = 5,093,008,634.74
  5. Step 5: Solve for x
    x = 5,093,008,634.74/81,234.83
  6. Step 6: Final answer
    x = 62,694.89

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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.