Home / 56,074.20-77,382.10-30,923.70

Finding the Fourth Proportional to 56,074.20, 77,382.10 and 30,923.70

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Solution

The fourth proportional to 56,074.20, 77,382.10 and 30,923.70 is: 42,674.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,074.20 : 77,382.10 = 30,923.70 : x
  2. Step 2: Convert to fraction form
    56,074.20/77,382.10 = 30,923.70/x
  3. Step 3: Cross multiply
    56,074.20x = 77,382.10 × 30,923.70
  4. Step 4: Simplify right side
    56,074.20x = 2,392,940,845.77
  5. Step 5: Solve for x
    x = 2,392,940,845.77/56,074.20
  6. Step 6: Final answer
    x = 42,674.54

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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.