Home / 42,539.94-63,749.43-31,358.70

Finding the Fourth Proportional to 42,539.94, 63,749.43 and 31,358.70

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Solution

The fourth proportional to 42,539.94, 63,749.43 and 31,358.70 is: 46,993.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,539.94 : 63,749.43 = 31,358.70 : x
  2. Step 2: Convert to fraction form
    42,539.94/63,749.43 = 31,358.70/x
  3. Step 3: Cross multiply
    42,539.94x = 63,749.43 × 31,358.70
  4. Step 4: Simplify right side
    42,539.94x = 1,999,099,250.54
  5. Step 5: Solve for x
    x = 1,999,099,250.54/42,539.94
  6. Step 6: Final answer
    x = 46,993.47

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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.