Home / 78,985.44-108,999.66-43,175.46

Finding the Fourth Proportional to 78,985.44, 108,999.66 and 43,175.46

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Solution

The fourth proportional to 78,985.44, 108,999.66 and 43,175.46 is: 59,582.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,985.44 : 108,999.66 = 43,175.46 : x
  2. Step 2: Convert to fraction form
    78,985.44/108,999.66 = 43,175.46/x
  3. Step 3: Cross multiply
    78,985.44x = 108,999.66 × 43,175.46
  4. Step 4: Simplify right side
    78,985.44x = 4,706,110,460.34
  5. Step 5: Solve for x
    x = 4,706,110,460.34/78,985.44
  6. Step 6: Final answer
    x = 59,582.00

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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.