Home / 61,917.90-85,460.31-40,699.14

Finding the Fourth Proportional to 61,917.90, 85,460.31 and 40,699.14

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Solution

The fourth proportional to 61,917.90, 85,460.31 and 40,699.14 is: 56,173.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,917.90 : 85,460.31 = 40,699.14 : x
  2. Step 2: Convert to fraction form
    61,917.90/85,460.31 = 40,699.14/x
  3. Step 3: Cross multiply
    61,917.90x = 85,460.31 × 40,699.14
  4. Step 4: Simplify right side
    61,917.90x = 3,478,161,121.13
  5. Step 5: Solve for x
    x = 3,478,161,121.13/61,917.90
  6. Step 6: Final answer
    x = 56,173.76

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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.