Home / 39,639.89-54,671.73-35,107.32

Finding the Fourth Proportional to 39,639.89, 54,671.73 and 35,107.32

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Solution

The fourth proportional to 39,639.89, 54,671.73 and 35,107.32 is: 48,420.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,639.89 : 54,671.73 = 35,107.32 : x
  2. Step 2: Convert to fraction form
    39,639.89/54,671.73 = 35,107.32/x
  3. Step 3: Cross multiply
    39,639.89x = 54,671.73 × 35,107.32
  4. Step 4: Simplify right side
    39,639.89x = 1,919,377,920.06
  5. Step 5: Solve for x
    x = 1,919,377,920.06/39,639.89
  6. Step 6: Final answer
    x = 48,420.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.