Home / 79,557.07-109,788.78-43,749.51

Finding the Fourth Proportional to 79,557.07, 109,788.78 and 43,749.51

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Solution

The fourth proportional to 79,557.07, 109,788.78 and 43,749.51 is: 60,374.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,557.07 : 109,788.78 = 43,749.51 : x
  2. Step 2: Convert to fraction form
    79,557.07/109,788.78 = 43,749.51/x
  3. Step 3: Cross multiply
    79,557.07x = 109,788.78 × 43,749.51
  4. Step 4: Simplify right side
    79,557.07x = 4,803,205,328.50
  5. Step 5: Solve for x
    x = 4,803,205,328.50/79,557.07
  6. Step 6: Final answer
    x = 60,374.34

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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.