Home / 78,868.64-108,839.09-43,059.47

Finding the Fourth Proportional to 78,868.64, 108,839.09 and 43,059.47

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Solution

The fourth proportional to 78,868.64, 108,839.09 and 43,059.47 is: 59,422.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,868.64 : 108,839.09 = 43,059.47 : x
  2. Step 2: Convert to fraction form
    78,868.64/108,839.09 = 43,059.47/x
  3. Step 3: Cross multiply
    78,868.64x = 108,839.09 × 43,059.47
  4. Step 4: Simplify right side
    78,868.64x = 4,686,553,094.14
  5. Step 5: Solve for x
    x = 4,686,553,094.14/78,868.64
  6. Step 6: Final answer
    x = 59,422.26

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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.