Home / 72,971.16-100,585.04-53,789.44

Finding the Fourth Proportional to 72,971.16, 100,585.04 and 53,789.44

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Solution

The fourth proportional to 72,971.16, 100,585.04 and 53,789.44 is: 74,144.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,971.16 : 100,585.04 = 53,789.44 : x
  2. Step 2: Convert to fraction form
    72,971.16/100,585.04 = 53,789.44/x
  3. Step 3: Cross multiply
    72,971.16x = 100,585.04 × 53,789.44
  4. Step 4: Simplify right side
    72,971.16x = 5,410,412,973.98
  5. Step 5: Solve for x
    x = 5,410,412,973.98/72,971.16
  6. Step 6: Final answer
    x = 74,144.54

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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.