Home / 73,055.79-109,587.33-20,470.59

Finding the Fourth Proportional to 73,055.79, 109,587.33 and 20,470.59

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Solution

The fourth proportional to 73,055.79, 109,587.33 and 20,470.59 is: 30,706.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,055.79 : 109,587.33 = 20,470.59 : x
  2. Step 2: Convert to fraction form
    73,055.79/109,587.33 = 20,470.59/x
  3. Step 3: Cross multiply
    73,055.79x = 109,587.33 × 20,470.59
  4. Step 4: Simplify right side
    73,055.79x = 2,243,317,301.62
  5. Step 5: Solve for x
    x = 2,243,317,301.62/73,055.79
  6. Step 6: Final answer
    x = 30,706.91

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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.