Home / 55,157.85-82,788.62-28,881.45

Finding the Fourth Proportional to 55,157.85, 82,788.62 and 28,881.45

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Solution

The fourth proportional to 55,157.85, 82,788.62 and 28,881.45 is: 43,349.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,157.85 : 82,788.62 = 28,881.45 : x
  2. Step 2: Convert to fraction form
    55,157.85/82,788.62 = 28,881.45/x
  3. Step 3: Cross multiply
    55,157.85x = 82,788.62 × 28,881.45
  4. Step 4: Simplify right side
    55,157.85x = 2,391,055,244.69
  5. Step 5: Solve for x
    x = 2,391,055,244.69/55,157.85
  6. Step 6: Final answer
    x = 43,349.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.