Home / 91,590.06-137,404.77-28,408.86

Finding the Fourth Proportional to 91,590.06, 137,404.77 and 28,408.86

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Solution

The fourth proportional to 91,590.06, 137,404.77 and 28,408.86 is: 42,619.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,590.06 : 137,404.77 = 28,408.86 : x
  2. Step 2: Convert to fraction form
    91,590.06/137,404.77 = 28,408.86/x
  3. Step 3: Cross multiply
    91,590.06x = 137,404.77 × 28,408.86
  4. Step 4: Simplify right side
    91,590.06x = 3,903,512,874.26
  5. Step 5: Solve for x
    x = 3,903,512,874.26/91,590.06
  6. Step 6: Final answer
    x = 42,619.39

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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.