Home / 77,780.74-107,309.35-50,938.56

Finding the Fourth Proportional to 77,780.74, 107,309.35 and 50,938.56

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Solution

The fourth proportional to 77,780.74, 107,309.35 and 50,938.56 is: 70,276.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,780.74 : 107,309.35 = 50,938.56 : x
  2. Step 2: Convert to fraction form
    77,780.74/107,309.35 = 50,938.56/x
  3. Step 3: Cross multiply
    77,780.74x = 107,309.35 × 50,938.56
  4. Step 4: Simplify right side
    77,780.74x = 5,466,183,763.54
  5. Step 5: Solve for x
    x = 5,466,183,763.54/77,780.74
  6. Step 6: Final answer
    x = 70,276.83

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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.