Home / 62,979.82-86,905.72-38,776.94

Finding the Fourth Proportional to 62,979.82, 86,905.72 and 38,776.94

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Solution

The fourth proportional to 62,979.82, 86,905.72 and 38,776.94 is: 53,508.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,979.82 : 86,905.72 = 38,776.94 : x
  2. Step 2: Convert to fraction form
    62,979.82/86,905.72 = 38,776.94/x
  3. Step 3: Cross multiply
    62,979.82x = 86,905.72 × 38,776.94
  4. Step 4: Simplify right side
    62,979.82x = 3,369,937,829.94
  5. Step 5: Solve for x
    x = 3,369,937,829.94/62,979.82
  6. Step 6: Final answer
    x = 53,508.22

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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.