Home / 76,857.54-106,063.83-42,868.26

Finding the Fourth Proportional to 76,857.54, 106,063.83 and 42,868.26

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Solution

The fourth proportional to 76,857.54, 106,063.83 and 42,868.26 is: 59,158.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,857.54 : 106,063.83 = 42,868.26 : x
  2. Step 2: Convert to fraction form
    76,857.54/106,063.83 = 42,868.26/x
  3. Step 3: Cross multiply
    76,857.54x = 106,063.83 × 42,868.26
  4. Step 4: Simplify right side
    76,857.54x = 4,546,771,841.04
  5. Step 5: Solve for x
    x = 4,546,771,841.04/76,857.54
  6. Step 6: Final answer
    x = 59,158.44

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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.