Home / 90,819.78-136,269.66-46,483.08

Finding the Fourth Proportional to 90,819.78, 136,269.66 and 46,483.08

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Solution

The fourth proportional to 90,819.78, 136,269.66 and 46,483.08 is: 69,745.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,819.78 : 136,269.66 = 46,483.08 : x
  2. Step 2: Convert to fraction form
    90,819.78/136,269.66 = 46,483.08/x
  3. Step 3: Cross multiply
    90,819.78x = 136,269.66 × 46,483.08
  4. Step 4: Simplify right side
    90,819.78x = 6,334,233,507.35
  5. Step 5: Solve for x
    x = 6,334,233,507.35/90,819.78
  6. Step 6: Final answer
    x = 69,745.09

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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.