Home / 81,744.92-112,808.58-45,935

Finding the Fourth Proportional to 81,744.92, 112,808.58 and 45,935

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Solution

The fourth proportional to 81,744.92, 112,808.58 and 45,935 is: 63,390.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,744.92 : 112,808.58 = 45,935 : x
  2. Step 2: Convert to fraction form
    81,744.92/112,808.58 = 45,935/x
  3. Step 3: Cross multiply
    81,744.92x = 112,808.58 × 45,935
  4. Step 4: Simplify right side
    81,744.92x = 5,181,862,122.30
  5. Step 5: Solve for x
    x = 5,181,862,122.30/81,744.92
  6. Step 6: Final answer
    x = 63,390.63

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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.