Home / 74,619.22-102,969.33-42,354.51

Finding the Fourth Proportional to 74,619.22, 102,969.33 and 42,354.51

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Solution

The fourth proportional to 74,619.22, 102,969.33 and 42,354.51 is: 58,446.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,619.22 : 102,969.33 = 42,354.51 : x
  2. Step 2: Convert to fraction form
    74,619.22/102,969.33 = 42,354.51/x
  3. Step 3: Cross multiply
    74,619.22x = 102,969.33 × 42,354.51
  4. Step 4: Simplify right side
    74,619.22x = 4,361,215,623.06
  5. Step 5: Solve for x
    x = 4,361,215,623.06/74,619.22
  6. Step 6: Final answer
    x = 58,446.28

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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.