Home / 73,006.32-109,422-28,605.36

Finding the Fourth Proportional to 73,006.32, 109,422 and 28,605.36

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Solution

The fourth proportional to 73,006.32, 109,422 and 28,605.36 is: 42,873.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,006.32 : 109,422 = 28,605.36 : x
  2. Step 2: Convert to fraction form
    73,006.32/109,422 = 28,605.36/x
  3. Step 3: Cross multiply
    73,006.32x = 109,422 × 28,605.36
  4. Step 4: Simplify right side
    73,006.32x = 3,130,055,701.92
  5. Step 5: Solve for x
    x = 3,130,055,701.92/73,006.32
  6. Step 6: Final answer
    x = 42,873.76

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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.