Home / 56,333.07-77,738.97-30,839.13

Finding the Fourth Proportional to 56,333.07, 77,738.97 and 30,839.13

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Solution

The fourth proportional to 56,333.07, 77,738.97 and 30,839.13 is: 42,557.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,333.07 : 77,738.97 = 30,839.13 : x
  2. Step 2: Convert to fraction form
    56,333.07/77,738.97 = 30,839.13/x
  3. Step 3: Cross multiply
    56,333.07x = 77,738.97 × 30,839.13
  4. Step 4: Simplify right side
    56,333.07x = 2,397,402,201.90
  5. Step 5: Solve for x
    x = 2,397,402,201.90/56,333.07
  6. Step 6: Final answer
    x = 42,557.63

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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.