Home / 331,037.52-496,557.36-81,719.52

Finding the Fourth Proportional to 331,037.52, 496,557.36 and 81,719.52

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Solution

The fourth proportional to 331,037.52, 496,557.36 and 81,719.52 is: 122,579.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,037.52 : 496,557.36 = 81,719.52 : x
  2. Step 2: Convert to fraction form
    331,037.52/496,557.36 = 81,719.52/x
  3. Step 3: Cross multiply
    331,037.52x = 496,557.36 × 81,719.52
  4. Step 4: Simplify right side
    331,037.52x = 40,578,429,111.67
  5. Step 5: Solve for x
    x = 40,578,429,111.67/331,037.52
  6. Step 6: Final answer
    x = 122,579.55

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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.