Home / 73,603.12-110,392.83-21,000.31

Finding the Fourth Proportional to 73,603.12, 110,392.83 and 21,000.31

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Solution

The fourth proportional to 73,603.12, 110,392.83 and 21,000.31 is: 31,497.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,603.12 : 110,392.83 = 21,000.31 : x
  2. Step 2: Convert to fraction form
    73,603.12/110,392.83 = 21,000.31/x
  3. Step 3: Cross multiply
    73,603.12x = 110,392.83 × 21,000.31
  4. Step 4: Simplify right side
    73,603.12x = 2,318,283,651.78
  5. Step 5: Solve for x
    x = 2,318,283,651.78/73,603.12
  6. Step 6: Final answer
    x = 31,497.08

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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.