Home / 79,400.50-109,570.66-43,590.20

Finding the Fourth Proportional to 79,400.50, 109,570.66 and 43,590.20

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Solution

The fourth proportional to 79,400.50, 109,570.66 and 43,590.20 is: 60,153.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,400.50 : 109,570.66 = 43,590.20 : x
  2. Step 2: Convert to fraction form
    79,400.50/109,570.66 = 43,590.20/x
  3. Step 3: Cross multiply
    79,400.50x = 109,570.66 × 43,590.20
  4. Step 4: Simplify right side
    79,400.50x = 4,776,206,326.70
  5. Step 5: Solve for x
    x = 4,776,206,326.70/79,400.50
  6. Step 6: Final answer
    x = 60,153.36

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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.