Home / 90,107.09-124,345.58-49,819.83

Finding the Fourth Proportional to 90,107.09, 124,345.58 and 49,819.83

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Solution

The fourth proportional to 90,107.09, 124,345.58 and 49,819.83 is: 68,750.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,107.09 : 124,345.58 = 49,819.83 : x
  2. Step 2: Convert to fraction form
    90,107.09/124,345.58 = 49,819.83/x
  3. Step 3: Cross multiply
    90,107.09x = 124,345.58 × 49,819.83
  4. Step 4: Simplify right side
    90,107.09x = 6,194,875,656.85
  5. Step 5: Solve for x
    x = 6,194,875,656.85/90,107.09
  6. Step 6: Final answer
    x = 68,750.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.