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Finding the Fourth Proportional to 73,010.80, 109,455.45 and 30,923.20

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Solution

The fourth proportional to 73,010.80, 109,455.45 and 30,923.20 is: 46,359.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,010.80 : 109,455.45 = 30,923.20 : x
  2. Step 2: Convert to fraction form
    73,010.80/109,455.45 = 30,923.20/x
  3. Step 3: Cross multiply
    73,010.80x = 109,455.45 × 30,923.20
  4. Step 4: Simplify right side
    73,010.80x = 3,384,712,771.44
  5. Step 5: Solve for x
    x = 3,384,712,771.44/73,010.80
  6. Step 6: Final answer
    x = 46,359.07

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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.