Home / 39,972.51-55,395.36-39,408.75

Finding the Fourth Proportional to 39,972.51, 55,395.36 and 39,408.75

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Solution

The fourth proportional to 39,972.51, 55,395.36 and 39,408.75 is: 54,614.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,972.51 : 55,395.36 = 39,408.75 : x
  2. Step 2: Convert to fraction form
    39,972.51/55,395.36 = 39,408.75/x
  3. Step 3: Cross multiply
    39,972.51x = 55,395.36 × 39,408.75
  4. Step 4: Simplify right side
    39,972.51x = 2,183,061,893.40
  5. Step 5: Solve for x
    x = 2,183,061,893.40/39,972.51
  6. Step 6: Final answer
    x = 54,614.08

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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.