Home / 79,210.22-109,305.90-45,217.35

Finding the Fourth Proportional to 79,210.22, 109,305.90 and 45,217.35

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Solution

The fourth proportional to 79,210.22, 109,305.90 and 45,217.35 is: 62,397.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,210.22 : 109,305.90 = 45,217.35 : x
  2. Step 2: Convert to fraction form
    79,210.22/109,305.90 = 45,217.35/x
  3. Step 3: Cross multiply
    79,210.22x = 109,305.90 × 45,217.35
  4. Step 4: Simplify right side
    79,210.22x = 4,942,523,137.37
  5. Step 5: Solve for x
    x = 4,942,523,137.37/79,210.22
  6. Step 6: Final answer
    x = 62,397.55

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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.