Home / 84,860.56-117,128.62-49,071.32

Finding the Fourth Proportional to 84,860.56, 117,128.62 and 49,071.32

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Solution

The fourth proportional to 84,860.56, 117,128.62 and 49,071.32 is: 67,730.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,860.56 : 117,128.62 = 49,071.32 : x
  2. Step 2: Convert to fraction form
    84,860.56/117,128.62 = 49,071.32/x
  3. Step 3: Cross multiply
    84,860.56x = 117,128.62 × 49,071.32
  4. Step 4: Simplify right side
    84,860.56x = 5,747,655,162.18
  5. Step 5: Solve for x
    x = 5,747,655,162.18/84,860.56
  6. Step 6: Final answer
    x = 67,730.59

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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.