Home / 43,085.91-64,628.40-16,809.11

Finding the Fourth Proportional to 43,085.91, 64,628.40 and 16,809.11

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Solution

The fourth proportional to 43,085.91, 64,628.40 and 16,809.11 is: 25,213.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,085.91 : 64,628.40 = 16,809.11 : x
  2. Step 2: Convert to fraction form
    43,085.91/64,628.40 = 16,809.11/x
  3. Step 3: Cross multiply
    43,085.91x = 64,628.40 × 16,809.11
  4. Step 4: Simplify right side
    43,085.91x = 1,086,345,561.58
  5. Step 5: Solve for x
    x = 1,086,345,561.58/43,085.91
  6. Step 6: Final answer
    x = 25,213.48

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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.