Home / 39,201.87-58,726.24-31,320.78

Finding the Fourth Proportional to 39,201.87, 58,726.24 and 31,320.78

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Solution

The fourth proportional to 39,201.87, 58,726.24 and 31,320.78 is: 46,920.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,201.87 : 58,726.24 = 31,320.78 : x
  2. Step 2: Convert to fraction form
    39,201.87/58,726.24 = 31,320.78/x
  3. Step 3: Cross multiply
    39,201.87x = 58,726.24 × 31,320.78
  4. Step 4: Simplify right side
    39,201.87x = 1,839,351,643.27
  5. Step 5: Solve for x
    x = 1,839,351,643.27/39,201.87
  6. Step 6: Final answer
    x = 46,920.00

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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.