Home / 73,707.37-110,580.19-21,120.95

Finding the Fourth Proportional to 73,707.37, 110,580.19 and 21,120.95

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Solution

The fourth proportional to 73,707.37, 110,580.19 and 21,120.95 is: 31,686.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,707.37 : 110,580.19 = 21,120.95 : x
  2. Step 2: Convert to fraction form
    73,707.37/110,580.19 = 21,120.95/x
  3. Step 3: Cross multiply
    73,707.37x = 110,580.19 × 21,120.95
  4. Step 4: Simplify right side
    73,707.37x = 2,335,558,887.63
  5. Step 5: Solve for x
    x = 2,335,558,887.63/73,707.37
  6. Step 6: Final answer
    x = 31,686.91

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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.