Home / 56,022.80-77,310.60-30,873.20

Finding the Fourth Proportional to 56,022.80, 77,310.60 and 30,873.20

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Solution

The fourth proportional to 56,022.80, 77,310.60 and 30,873.20 is: 42,604.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,022.80 : 77,310.60 = 30,873.20 : x
  2. Step 2: Convert to fraction form
    56,022.80/77,310.60 = 30,873.20/x
  3. Step 3: Cross multiply
    56,022.80x = 77,310.60 × 30,873.20
  4. Step 4: Simplify right side
    56,022.80x = 2,386,825,615.92
  5. Step 5: Solve for x
    x = 2,386,825,615.92/56,022.80
  6. Step 6: Final answer
    x = 42,604.54

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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.