Home / 77,300.74-106,678.09-43,309.51

Finding the Fourth Proportional to 77,300.74, 106,678.09 and 43,309.51

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Solution

The fourth proportional to 77,300.74, 106,678.09 and 43,309.51 is: 59,768.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,300.74 : 106,678.09 = 43,309.51 : x
  2. Step 2: Convert to fraction form
    77,300.74/106,678.09 = 43,309.51/x
  3. Step 3: Cross multiply
    77,300.74x = 106,678.09 × 43,309.51
  4. Step 4: Simplify right side
    77,300.74x = 4,620,175,589.09
  5. Step 5: Solve for x
    x = 4,620,175,589.09/77,300.74
  6. Step 6: Final answer
    x = 59,768.84

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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.