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Finding the Fourth Proportional to 73,807.80, 110,712.08 and 18,403.80

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Solution

The fourth proportional to 73,807.80, 110,712.08 and 18,403.80 is: 27,605.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,807.80 : 110,712.08 = 18,403.80 : x
  2. Step 2: Convert to fraction form
    73,807.80/110,712.08 = 18,403.80/x
  3. Step 3: Cross multiply
    73,807.80x = 110,712.08 × 18,403.80
  4. Step 4: Simplify right side
    73,807.80x = 2,037,522,977.90
  5. Step 5: Solve for x
    x = 2,037,522,977.90/73,807.80
  6. Step 6: Final answer
    x = 27,605.79

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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.