Home / 74,456.36-111,686.34-21,865.76

Finding the Fourth Proportional to 74,456.36, 111,686.34 and 21,865.76

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Solution

The fourth proportional to 74,456.36, 111,686.34 and 21,865.76 is: 32,799.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,456.36 : 111,686.34 = 21,865.76 : x
  2. Step 2: Convert to fraction form
    74,456.36/111,686.34 = 21,865.76/x
  3. Step 3: Cross multiply
    74,456.36x = 111,686.34 × 21,865.76
  4. Step 4: Simplify right side
    74,456.36x = 2,442,106,705.72
  5. Step 5: Solve for x
    x = 2,442,106,705.72/74,456.36
  6. Step 6: Final answer
    x = 32,799.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.