Home / 56,490.80-77,954.24-30,996.71

Finding the Fourth Proportional to 56,490.80, 77,954.24 and 30,996.71

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Solution

The fourth proportional to 56,490.80, 77,954.24 and 30,996.71 is: 42,773.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,490.80 : 77,954.24 = 30,996.71 : x
  2. Step 2: Convert to fraction form
    56,490.80/77,954.24 = 30,996.71/x
  3. Step 3: Cross multiply
    56,490.80x = 77,954.24 × 30,996.71
  4. Step 4: Simplify right side
    56,490.80x = 2,416,324,425.80
  5. Step 5: Solve for x
    x = 2,416,324,425.80/56,490.80
  6. Step 6: Final answer
    x = 42,773.77

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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.