Home / 78,822.26-108,765.81-45,299.06

Finding the Fourth Proportional to 78,822.26, 108,765.81 and 45,299.06

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Solution

The fourth proportional to 78,822.26, 108,765.81 and 45,299.06 is: 62,507.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,822.26 : 108,765.81 = 45,299.06 : x
  2. Step 2: Convert to fraction form
    78,822.26/108,765.81 = 45,299.06/x
  3. Step 3: Cross multiply
    78,822.26x = 108,765.81 × 45,299.06
  4. Step 4: Simplify right side
    78,822.26x = 4,926,988,953.14
  5. Step 5: Solve for x
    x = 4,926,988,953.14/78,822.26
  6. Step 6: Final answer
    x = 62,507.58

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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.