Home / 74,564.66-102,902.07-42,739.70

Finding the Fourth Proportional to 74,564.66, 102,902.07 and 42,739.70

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Solution

The fourth proportional to 74,564.66, 102,902.07 and 42,739.70 is: 58,982.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,564.66 : 102,902.07 = 42,739.70 : x
  2. Step 2: Convert to fraction form
    74,564.66/102,902.07 = 42,739.70/x
  3. Step 3: Cross multiply
    74,564.66x = 102,902.07 × 42,739.70
  4. Step 4: Simplify right side
    74,564.66x = 4,398,003,601.18
  5. Step 5: Solve for x
    x = 4,398,003,601.18/74,564.66
  6. Step 6: Final answer
    x = 58,982.41

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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.