Home / 77,290.72-106,661.04-43,759.84

Finding the Fourth Proportional to 77,290.72, 106,661.04 and 43,759.84

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Solution

The fourth proportional to 77,290.72, 106,661.04 and 43,759.84 is: 60,388.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,290.72 : 106,661.04 = 43,759.84 : x
  2. Step 2: Convert to fraction form
    77,290.72/106,661.04 = 43,759.84/x
  3. Step 3: Cross multiply
    77,290.72x = 106,661.04 × 43,759.84
  4. Step 4: Simplify right side
    77,290.72x = 4,667,470,044.63
  5. Step 5: Solve for x
    x = 4,667,470,044.63/77,290.72
  6. Step 6: Final answer
    x = 60,388.49

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1.5x scale

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.