Home / 74,949.22-103,419.97-48,128.06

Finding the Fourth Proportional to 74,949.22, 103,419.97 and 48,128.06

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Solution

The fourth proportional to 74,949.22, 103,419.97 and 48,128.06 is: 66,410.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,949.22 : 103,419.97 = 48,128.06 : x
  2. Step 2: Convert to fraction form
    74,949.22/103,419.97 = 48,128.06/x
  3. Step 3: Cross multiply
    74,949.22x = 103,419.97 × 48,128.06
  4. Step 4: Simplify right side
    74,949.22x = 4,977,402,521.36
  5. Step 5: Solve for x
    x = 4,977,402,521.36/74,949.22
  6. Step 6: Final answer
    x = 66,410.33

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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.