Home / 70,976.83-106,465.24-18,386.31

Finding the Fourth Proportional to 70,976.83, 106,465.24 and 18,386.31

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Solution

The fourth proportional to 70,976.83, 106,465.24 and 18,386.31 is: 27,579.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,976.83 : 106,465.24 = 18,386.31 : x
  2. Step 2: Convert to fraction form
    70,976.83/106,465.24 = 18,386.31/x
  3. Step 3: Cross multiply
    70,976.83x = 106,465.24 × 18,386.31
  4. Step 4: Simplify right side
    70,976.83x = 1,957,502,906.86
  5. Step 5: Solve for x
    x = 1,957,502,906.86/70,976.83
  6. Step 6: Final answer
    x = 27,579.46

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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.