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Finding the Fourth Proportional to 79,779.84, 110,095.60 and 43,971.36

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Solution

The fourth proportional to 79,779.84, 110,095.60 and 43,971.36 is: 60,680.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,779.84 : 110,095.60 = 43,971.36 : x
  2. Step 2: Convert to fraction form
    79,779.84/110,095.60 = 43,971.36/x
  3. Step 3: Cross multiply
    79,779.84x = 110,095.60 × 43,971.36
  4. Step 4: Simplify right side
    79,779.84x = 4,841,053,262.02
  5. Step 5: Solve for x
    x = 4,841,053,262.02/79,779.84
  6. Step 6: Final answer
    x = 60,680.16

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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.