Home / 49,721.72-74,582.78-20,140.11

Finding the Fourth Proportional to 49,721.72, 74,582.78 and 20,140.11

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Solution

The fourth proportional to 49,721.72, 74,582.78 and 20,140.11 is: 30,210.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,721.72 : 74,582.78 = 20,140.11 : x
  2. Step 2: Convert to fraction form
    49,721.72/74,582.78 = 20,140.11/x
  3. Step 3: Cross multiply
    49,721.72x = 74,582.78 × 20,140.11
  4. Step 4: Simplify right side
    49,721.72x = 1,502,105,292.61
  5. Step 5: Solve for x
    x = 1,502,105,292.61/49,721.72
  6. Step 6: Final answer
    x = 30,210.25

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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.