Home / 48,426.94-72,640.41-20,705.50

Finding the Fourth Proportional to 48,426.94, 72,640.41 and 20,705.50

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Solution

The fourth proportional to 48,426.94, 72,640.41 and 20,705.50 is: 31,058.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,426.94 : 72,640.41 = 20,705.50 : x
  2. Step 2: Convert to fraction form
    48,426.94/72,640.41 = 20,705.50/x
  3. Step 3: Cross multiply
    48,426.94x = 72,640.41 × 20,705.50
  4. Step 4: Simplify right side
    48,426.94x = 1,504,056,009.26
  5. Step 5: Solve for x
    x = 1,504,056,009.26/48,426.94
  6. Step 6: Final answer
    x = 31,058.25

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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.