Home / 75,140.31-103,693.63-41,606.31

Finding the Fourth Proportional to 75,140.31, 103,693.63 and 41,606.31

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Solution

The fourth proportional to 75,140.31, 103,693.63 and 41,606.31 is: 57,416.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,140.31 : 103,693.63 = 41,606.31 : x
  2. Step 2: Convert to fraction form
    75,140.31/103,693.63 = 41,606.31/x
  3. Step 3: Cross multiply
    75,140.31x = 103,693.63 × 41,606.31
  4. Step 4: Simplify right side
    75,140.31x = 4,314,309,314.81
  5. Step 5: Solve for x
    x = 4,314,309,314.81/75,140.31
  6. Step 6: Final answer
    x = 57,416.71

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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.