Home / 69,741.52-104,570.16-28,139.92

Finding the Fourth Proportional to 69,741.52, 104,570.16 and 28,139.92

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Solution

The fourth proportional to 69,741.52, 104,570.16 and 28,139.92 is: 42,192.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,741.52 : 104,570.16 = 28,139.92 : x
  2. Step 2: Convert to fraction form
    69,741.52/104,570.16 = 28,139.92/x
  3. Step 3: Cross multiply
    69,741.52x = 104,570.16 × 28,139.92
  4. Step 4: Simplify right side
    69,741.52x = 2,942,595,936.79
  5. Step 5: Solve for x
    x = 2,942,595,936.79/69,741.52
  6. Step 6: Final answer
    x = 42,192.89

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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.