Home / 76,865.51-106,064.97-42,866.03

Finding the Fourth Proportional to 76,865.51, 106,064.97 and 42,866.03

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Solution

The fourth proportional to 76,865.51, 106,064.97 and 42,866.03 is: 59,149.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,865.51 : 106,064.97 = 42,866.03 : x
  2. Step 2: Convert to fraction form
    76,865.51/106,064.97 = 42,866.03/x
  3. Step 3: Cross multiply
    76,865.51x = 106,064.97 × 42,866.03
  4. Step 4: Simplify right side
    76,865.51x = 4,546,584,185.97
  5. Step 5: Solve for x
    x = 4,546,584,185.97/76,865.51
  6. Step 6: Final answer
    x = 59,149.86

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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.