Home / 77,884.07-107,477.42-49,219.02

Finding the Fourth Proportional to 77,884.07, 107,477.42 and 49,219.02

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Solution

The fourth proportional to 77,884.07, 107,477.42 and 49,219.02 is: 67,920.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,884.07 : 107,477.42 = 49,219.02 : x
  2. Step 2: Convert to fraction form
    77,884.07/107,477.42 = 49,219.02/x
  3. Step 3: Cross multiply
    77,884.07x = 107,477.42 × 49,219.02
  4. Step 4: Simplify right side
    77,884.07x = 5,289,933,038.43
  5. Step 5: Solve for x
    x = 5,289,933,038.43/77,884.07
  6. Step 6: Final answer
    x = 67,920.61

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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.