Home / 77,883.30-116,824.93-18,718.97

Finding the Fourth Proportional to 77,883.30, 116,824.93 and 18,718.97

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Solution

The fourth proportional to 77,883.30, 116,824.93 and 18,718.97 is: 28,078.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,883.30 : 116,824.93 = 18,718.97 : x
  2. Step 2: Convert to fraction form
    77,883.30/116,824.93 = 18,718.97/x
  3. Step 3: Cross multiply
    77,883.30x = 116,824.93 × 18,718.97
  4. Step 4: Simplify right side
    77,883.30x = 2,186,841,729.00
  5. Step 5: Solve for x
    x = 2,186,841,729.00/77,883.30
  6. Step 6: Final answer
    x = 28,078.44

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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.