Home / 80,245.13-119,840.77-64,474.13

Finding the Fourth Proportional to 80,245.13, 119,840.77 and 64,474.13

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Solution

The fourth proportional to 80,245.13, 119,840.77 and 64,474.13 is: 96,287.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,245.13 : 119,840.77 = 64,474.13 : x
  2. Step 2: Convert to fraction form
    80,245.13/119,840.77 = 64,474.13/x
  3. Step 3: Cross multiply
    80,245.13x = 119,840.77 × 64,474.13
  4. Step 4: Simplify right side
    80,245.13x = 7,726,628,727.70
  5. Step 5: Solve for x
    x = 7,726,628,727.70/80,245.13
  6. Step 6: Final answer
    x = 96,287.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.