Home / 77,708.19-107,134.07-50,804.45

Finding the Fourth Proportional to 77,708.19, 107,134.07 and 50,804.45

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Solution

The fourth proportional to 77,708.19, 107,134.07 and 50,804.45 is: 70,042.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,708.19 : 107,134.07 = 50,804.45 : x
  2. Step 2: Convert to fraction form
    77,708.19/107,134.07 = 50,804.45/x
  3. Step 3: Cross multiply
    77,708.19x = 107,134.07 × 50,804.45
  4. Step 4: Simplify right side
    77,708.19x = 5,442,886,712.92
  5. Step 5: Solve for x
    x = 5,442,886,712.92/77,708.19
  6. Step 6: Final answer
    x = 70,042.64

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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.