Home / 79,747.80-119,621.70-54,864.60

Finding the Fourth Proportional to 79,747.80, 119,621.70 and 54,864.60

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Solution

The fourth proportional to 79,747.80, 119,621.70 and 54,864.60 is: 82,296.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,747.80 : 119,621.70 = 54,864.60 : x
  2. Step 2: Convert to fraction form
    79,747.80/119,621.70 = 54,864.60/x
  3. Step 3: Cross multiply
    79,747.80x = 119,621.70 × 54,864.60
  4. Step 4: Simplify right side
    79,747.80x = 6,562,996,721.82
  5. Step 5: Solve for x
    x = 6,562,996,721.82/79,747.80
  6. Step 6: Final answer
    x = 82,296.90

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1.5x scale

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.