Home / 76,169.51-105,112.62-42,177.26

Finding the Fourth Proportional to 76,169.51, 105,112.62 and 42,177.26

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Solution

The fourth proportional to 76,169.51, 105,112.62 and 42,177.26 is: 58,203.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,169.51 : 105,112.62 = 42,177.26 : x
  2. Step 2: Convert to fraction form
    76,169.51/105,112.62 = 42,177.26/x
  3. Step 3: Cross multiply
    76,169.51x = 105,112.62 × 42,177.26
  4. Step 4: Simplify right side
    76,169.51x = 4,433,361,777.46
  5. Step 5: Solve for x
    x = 4,433,361,777.46/76,169.51
  6. Step 6: Final answer
    x = 58,203.89

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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.