Home / 86,721.96-119,669.70-52,725.74

Finding the Fourth Proportional to 86,721.96, 119,669.70 and 52,725.74

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Solution

The fourth proportional to 86,721.96, 119,669.70 and 52,725.74 is: 72,757.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,721.96 : 119,669.70 = 52,725.74 : x
  2. Step 2: Convert to fraction form
    86,721.96/119,669.70 = 52,725.74/x
  3. Step 3: Cross multiply
    86,721.96x = 119,669.70 × 52,725.74
  4. Step 4: Simplify right side
    86,721.96x = 6,309,673,488.08
  5. Step 5: Solve for x
    x = 6,309,673,488.08/86,721.96
  6. Step 6: Final answer
    x = 72,757.51

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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.