Home / 74,310.30-111,465.45-73,872.90

Finding the Fourth Proportional to 74,310.30, 111,465.45 and 73,872.90

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Solution

The fourth proportional to 74,310.30, 111,465.45 and 73,872.90 is: 110,809.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,310.30 : 111,465.45 = 73,872.90 : x
  2. Step 2: Convert to fraction form
    74,310.30/111,465.45 = 73,872.90/x
  3. Step 3: Cross multiply
    74,310.30x = 111,465.45 × 73,872.90
  4. Step 4: Simplify right side
    74,310.30x = 8,234,276,041.31
  5. Step 5: Solve for x
    x = 8,234,276,041.31/74,310.30
  6. Step 6: Final answer
    x = 110,809.35

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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.