Home / 79,208.19-109,303.12-45,215.32

Finding the Fourth Proportional to 79,208.19, 109,303.12 and 45,215.32

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Solution

The fourth proportional to 79,208.19, 109,303.12 and 45,215.32 is: 62,394.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,208.19 : 109,303.12 = 45,215.32 : x
  2. Step 2: Convert to fraction form
    79,208.19/109,303.12 = 45,215.32/x
  3. Step 3: Cross multiply
    79,208.19x = 109,303.12 × 45,215.32
  4. Step 4: Simplify right side
    79,208.19x = 4,942,175,321.72
  5. Step 5: Solve for x
    x = 4,942,175,321.72/79,208.19
  6. Step 6: Final answer
    x = 62,394.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.