Home / 56,090.14-77,403.14-30,939.64

Finding the Fourth Proportional to 56,090.14, 77,403.14 and 30,939.64

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Solution

The fourth proportional to 56,090.14, 77,403.14 and 30,939.64 is: 42,696.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,090.14 : 77,403.14 = 30,939.64 : x
  2. Step 2: Convert to fraction form
    56,090.14/77,403.14 = 30,939.64/x
  3. Step 3: Cross multiply
    56,090.14x = 77,403.14 × 30,939.64
  4. Step 4: Simplify right side
    56,090.14x = 2,394,825,286.47
  5. Step 5: Solve for x
    x = 2,394,825,286.47/56,090.14
  6. Step 6: Final answer
    x = 42,696.01

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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.