Home / 55,857.36-77,077.26-31,981.80

Finding the Fourth Proportional to 55,857.36, 77,077.26 and 31,981.80

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Solution

The fourth proportional to 55,857.36, 77,077.26 and 31,981.80 is: 44,131.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,857.36 : 77,077.26 = 31,981.80 : x
  2. Step 2: Convert to fraction form
    55,857.36/77,077.26 = 31,981.80/x
  3. Step 3: Cross multiply
    55,857.36x = 77,077.26 × 31,981.80
  4. Step 4: Simplify right side
    55,857.36x = 2,465,069,513.87
  5. Step 5: Solve for x
    x = 2,465,069,513.87/55,857.36
  6. Step 6: Final answer
    x = 44,131.51

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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.