Home / 61,043.12-91,400.62-38,735.72

Finding the Fourth Proportional to 61,043.12, 91,400.62 and 38,735.72

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Solution

The fourth proportional to 61,043.12, 91,400.62 and 38,735.72 is: 57,999.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,043.12 : 91,400.62 = 38,735.72 : x
  2. Step 2: Convert to fraction form
    61,043.12/91,400.62 = 38,735.72/x
  3. Step 3: Cross multiply
    61,043.12x = 91,400.62 × 38,735.72
  4. Step 4: Simplify right side
    61,043.12x = 3,540,468,824.15
  5. Step 5: Solve for x
    x = 3,540,468,824.15/61,043.12
  6. Step 6: Final answer
    x = 57,999.47

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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.