Home / 77,408.04-106,845.77-50,554.72

Finding the Fourth Proportional to 77,408.04, 106,845.77 and 50,554.72

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Solution

The fourth proportional to 77,408.04, 106,845.77 and 50,554.72 is: 69,780.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,408.04 : 106,845.77 = 50,554.72 : x
  2. Step 2: Convert to fraction form
    77,408.04/106,845.77 = 50,554.72/x
  3. Step 3: Cross multiply
    77,408.04x = 106,845.77 × 50,554.72
  4. Step 4: Simplify right side
    77,408.04x = 5,401,557,844.81
  5. Step 5: Solve for x
    x = 5,401,557,844.81/77,408.04
  6. Step 6: Final answer
    x = 69,780.32

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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.