Home / 77,955.39-116,904.06-28,021.86

Finding the Fourth Proportional to 77,955.39, 116,904.06 and 28,021.86

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Solution

The fourth proportional to 77,955.39, 116,904.06 and 28,021.86 is: 42,022.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,955.39 : 116,904.06 = 28,021.86 : x
  2. Step 2: Convert to fraction form
    77,955.39/116,904.06 = 28,021.86/x
  3. Step 3: Cross multiply
    77,955.39x = 116,904.06 × 28,021.86
  4. Step 4: Simplify right side
    77,955.39x = 3,275,869,202.75
  5. Step 5: Solve for x
    x = 3,275,869,202.75/77,955.39
  6. Step 6: Final answer
    x = 42,022.36

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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.