Home / 72,140.36-108,220.79-22,224.51

Finding the Fourth Proportional to 72,140.36, 108,220.79 and 22,224.51

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Solution

The fourth proportional to 72,140.36, 108,220.79 and 22,224.51 is: 33,339.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,140.36 : 108,220.79 = 22,224.51 : x
  2. Step 2: Convert to fraction form
    72,140.36/108,220.79 = 22,224.51/x
  3. Step 3: Cross multiply
    72,140.36x = 108,220.79 × 22,224.51
  4. Step 4: Simplify right side
    72,140.36x = 2,405,154,085.12
  5. Step 5: Solve for x
    x = 2,405,154,085.12/72,140.36
  6. Step 6: Final answer
    x = 33,339.93

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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.