Home / 91,249.44-136,877.04-28,920.48

Finding the Fourth Proportional to 91,249.44, 136,877.04 and 28,920.48

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Solution

The fourth proportional to 91,249.44, 136,877.04 and 28,920.48 is: 43,381.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,249.44 : 136,877.04 = 28,920.48 : x
  2. Step 2: Convert to fraction form
    91,249.44/136,877.04 = 28,920.48/x
  3. Step 3: Cross multiply
    91,249.44x = 136,877.04 × 28,920.48
  4. Step 4: Simplify right side
    91,249.44x = 3,958,549,697.78
  5. Step 5: Solve for x
    x = 3,958,549,697.78/91,249.44
  6. Step 6: Final answer
    x = 43,381.63

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1.5x scale

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.