Home / 75,538.10-113,223.99-31,140.50

Finding the Fourth Proportional to 75,538.10, 113,223.99 and 31,140.50

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Solution

The fourth proportional to 75,538.10, 113,223.99 and 31,140.50 is: 46,676.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,538.10 : 113,223.99 = 31,140.50 : x
  2. Step 2: Convert to fraction form
    75,538.10/113,223.99 = 31,140.50/x
  3. Step 3: Cross multiply
    75,538.10x = 113,223.99 × 31,140.50
  4. Step 4: Simplify right side
    75,538.10x = 3,525,851,660.60
  5. Step 5: Solve for x
    x = 3,525,851,660.60/75,538.10
  6. Step 6: Final answer
    x = 46,676.47

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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.