Home / 77,739.57-116,610-21,584.06

Finding the Fourth Proportional to 77,739.57, 116,610 and 21,584.06

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Solution

The fourth proportional to 77,739.57, 116,610 and 21,584.06 is: 32,376.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,739.57 : 116,610 = 21,584.06 : x
  2. Step 2: Convert to fraction form
    77,739.57/116,610 = 21,584.06/x
  3. Step 3: Cross multiply
    77,739.57x = 116,610 × 21,584.06
  4. Step 4: Simplify right side
    77,739.57x = 2,516,916,653.55
  5. Step 5: Solve for x
    x = 2,516,916,653.55/77,739.57
  6. Step 6: Final answer
    x = 32,376.26

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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.