Home / 55,922-77,172.90-30,772.04

Finding the Fourth Proportional to 55,922, 77,172.90 and 30,772.04

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Solution

The fourth proportional to 55,922, 77,172.90 and 30,772.04 is: 42,465.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,922 : 77,172.90 = 30,772.04 : x
  2. Step 2: Convert to fraction form
    55,922/77,172.90 = 30,772.04/x
  3. Step 3: Cross multiply
    55,922x = 77,172.90 × 30,772.04
  4. Step 4: Simplify right side
    55,922x = 2,374,767,565.72
  5. Step 5: Solve for x
    x = 2,374,767,565.72/55,922
  6. Step 6: Final answer
    x = 42,465.71

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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.