Home / 72,963.12-109,450.32-28,006.10

Finding the Fourth Proportional to 72,963.12, 109,450.32 and 28,006.10

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Solution

The fourth proportional to 72,963.12, 109,450.32 and 28,006.10 is: 42,011.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,963.12 : 109,450.32 = 28,006.10 : x
  2. Step 2: Convert to fraction form
    72,963.12/109,450.32 = 28,006.10/x
  3. Step 3: Cross multiply
    72,963.12x = 109,450.32 × 28,006.10
  4. Step 4: Simplify right side
    72,963.12x = 3,065,276,059.70
  5. Step 5: Solve for x
    x = 3,065,276,059.70/72,963.12
  6. Step 6: Final answer
    x = 42,011.31

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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.