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Finding the Fourth Proportional to 74,205.79, 111,307.12 and 18,046.19

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Solution

The fourth proportional to 74,205.79, 111,307.12 and 18,046.19 is: 27,068.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,205.79 : 111,307.12 = 18,046.19 : x
  2. Step 2: Convert to fraction form
    74,205.79/111,307.12 = 18,046.19/x
  3. Step 3: Cross multiply
    74,205.79x = 111,307.12 × 18,046.19
  4. Step 4: Simplify right side
    74,205.79x = 2,008,669,435.87
  5. Step 5: Solve for x
    x = 2,008,669,435.87/74,205.79
  6. Step 6: Final answer
    x = 27,068.90

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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.