Home / 90,794.36-136,213.40-28,464.86

Finding the Fourth Proportional to 90,794.36, 136,213.40 and 28,464.86

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Solution

The fourth proportional to 90,794.36, 136,213.40 and 28,464.86 is: 42,704.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,794.36 : 136,213.40 = 28,464.86 : x
  2. Step 2: Convert to fraction form
    90,794.36/136,213.40 = 28,464.86/x
  3. Step 3: Cross multiply
    90,794.36x = 136,213.40 × 28,464.86
  4. Step 4: Simplify right side
    90,794.36x = 3,877,294,537.73
  5. Step 5: Solve for x
    x = 3,877,294,537.73/90,794.36
  6. Step 6: Final answer
    x = 42,704.14

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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.