Home / 68,938.54-103,495.31-58,615.90

Finding the Fourth Proportional to 68,938.54, 103,495.31 and 58,615.90

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Solution

The fourth proportional to 68,938.54, 103,495.31 and 58,615.90 is: 87,998.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,938.54 : 103,495.31 = 58,615.90 : x
  2. Step 2: Convert to fraction form
    68,938.54/103,495.31 = 58,615.90/x
  3. Step 3: Cross multiply
    68,938.54x = 103,495.31 × 58,615.90
  4. Step 4: Simplify right side
    68,938.54x = 6,066,470,741.43
  5. Step 5: Solve for x
    x = 6,066,470,741.43/68,938.54
  6. Step 6: Final answer
    x = 87,998.25

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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.