Home / 61,940.09-85,483.30-34,720.78

Finding the Fourth Proportional to 61,940.09, 85,483.30 and 34,720.78

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Solution

The fourth proportional to 61,940.09, 85,483.30 and 34,720.78 is: 47,918.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,940.09 : 85,483.30 = 34,720.78 : x
  2. Step 2: Convert to fraction form
    61,940.09/85,483.30 = 34,720.78/x
  3. Step 3: Cross multiply
    61,940.09x = 85,483.30 × 34,720.78
  4. Step 4: Simplify right side
    61,940.09x = 2,968,046,755.29
  5. Step 5: Solve for x
    x = 2,968,046,755.29/61,940.09
  6. Step 6: Final answer
    x = 47,918.03

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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.