Home / 76,865.65-106,074.73-42,876.33

Finding the Fourth Proportional to 76,865.65, 106,074.73 and 42,876.33

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Solution

The fourth proportional to 76,865.65, 106,074.73 and 42,876.33 is: 59,169.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,865.65 : 106,074.73 = 42,876.33 : x
  2. Step 2: Convert to fraction form
    76,865.65/106,074.73 = 42,876.33/x
  3. Step 3: Cross multiply
    76,865.65x = 106,074.73 × 42,876.33
  4. Step 4: Simplify right side
    76,865.65x = 4,548,095,128.14
  5. Step 5: Solve for x
    x = 4,548,095,128.14/76,865.65
  6. Step 6: Final answer
    x = 59,169.41

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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.