Home / 75,127.53-103,699.05-43,317.60

Finding the Fourth Proportional to 75,127.53, 103,699.05 and 43,317.60

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Solution

The fourth proportional to 75,127.53, 103,699.05 and 43,317.60 is: 59,791.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,127.53 : 103,699.05 = 43,317.60 : x
  2. Step 2: Convert to fraction form
    75,127.53/103,699.05 = 43,317.60/x
  3. Step 3: Cross multiply
    75,127.53x = 103,699.05 × 43,317.60
  4. Step 4: Simplify right side
    75,127.53x = 4,491,993,968.28
  5. Step 5: Solve for x
    x = 4,491,993,968.28/75,127.53
  6. Step 6: Final answer
    x = 59,791.58

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1.5x scale

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.