Home / 77,287.50-115,947.79-23,978.33

Finding the Fourth Proportional to 77,287.50, 115,947.79 and 23,978.33

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Solution

The fourth proportional to 77,287.50, 115,947.79 and 23,978.33 is: 35,972.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,287.50 : 115,947.79 = 23,978.33 : x
  2. Step 2: Convert to fraction form
    77,287.50/115,947.79 = 23,978.33/x
  3. Step 3: Cross multiply
    77,287.50x = 115,947.79 × 23,978.33
  4. Step 4: Simplify right side
    77,287.50x = 2,780,234,166.51
  5. Step 5: Solve for x
    x = 2,780,234,166.51/77,287.50
  6. Step 6: Final answer
    x = 35,972.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.