Home / 74,920.90-103,453.05-49,884.10

Finding the Fourth Proportional to 74,920.90, 103,453.05 and 49,884.10

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Solution

The fourth proportional to 74,920.90, 103,453.05 and 49,884.10 is: 68,881.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,920.90 : 103,453.05 = 49,884.10 : x
  2. Step 2: Convert to fraction form
    74,920.90/103,453.05 = 49,884.10/x
  3. Step 3: Cross multiply
    74,920.90x = 103,453.05 × 49,884.10
  4. Step 4: Simplify right side
    74,920.90x = 5,160,662,291.51
  5. Step 5: Solve for x
    x = 5,160,662,291.51/74,920.90
  6. Step 6: Final answer
    x = 68,881.48

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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.