Home / 55,129.55-82,633.73-28,477.62

Finding the Fourth Proportional to 55,129.55, 82,633.73 and 28,477.62

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Solution

The fourth proportional to 55,129.55, 82,633.73 and 28,477.62 is: 42,685.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,129.55 : 82,633.73 = 28,477.62 : x
  2. Step 2: Convert to fraction form
    55,129.55/82,633.73 = 28,477.62/x
  3. Step 3: Cross multiply
    55,129.55x = 82,633.73 × 28,477.62
  4. Step 4: Simplify right side
    55,129.55x = 2,353,211,819.73
  5. Step 5: Solve for x
    x = 2,353,211,819.73/55,129.55
  6. Step 6: Final answer
    x = 42,685.13

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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.