Home / 76,043.16-104,930.39-42,047.06

Finding the Fourth Proportional to 76,043.16, 104,930.39 and 42,047.06

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Solution

The fourth proportional to 76,043.16, 104,930.39 and 42,047.06 is: 58,019.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,043.16 : 104,930.39 = 42,047.06 : x
  2. Step 2: Convert to fraction form
    76,043.16/104,930.39 = 42,047.06/x
  3. Step 3: Cross multiply
    76,043.16x = 104,930.39 × 42,047.06
  4. Step 4: Simplify right side
    76,043.16x = 4,412,013,984.62
  5. Step 5: Solve for x
    x = 4,412,013,984.62/76,043.16
  6. Step 6: Final answer
    x = 58,019.87

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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.