Home / 39,941.57-55,352.38-39,377.81

Finding the Fourth Proportional to 39,941.57, 55,352.38 and 39,377.81

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Solution

The fourth proportional to 39,941.57, 55,352.38 and 39,377.81 is: 54,571.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,941.57 : 55,352.38 = 39,377.81 : x
  2. Step 2: Convert to fraction form
    39,941.57/55,352.38 = 39,377.81/x
  3. Step 3: Cross multiply
    39,941.57x = 55,352.38 × 39,377.81
  4. Step 4: Simplify right side
    39,941.57x = 2,179,655,616.46
  5. Step 5: Solve for x
    x = 2,179,655,616.46/39,941.57
  6. Step 6: Final answer
    x = 54,571.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.