Home / 78,845.04-108,805.40-43,035.28

Finding the Fourth Proportional to 78,845.04, 108,805.40 and 43,035.28

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Solution

The fourth proportional to 78,845.04, 108,805.40 and 43,035.28 is: 59,388.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,845.04 : 108,805.40 = 43,035.28 : x
  2. Step 2: Convert to fraction form
    78,845.04/108,805.40 = 43,035.28/x
  3. Step 3: Cross multiply
    78,845.04x = 108,805.40 × 43,035.28
  4. Step 4: Simplify right side
    78,845.04x = 4,682,470,854.51
  5. Step 5: Solve for x
    x = 4,682,470,854.51/78,845.04
  6. Step 6: Final answer
    x = 59,388.27

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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.