Home / 79,787.52-110,106.36-43,977.60

Finding the Fourth Proportional to 79,787.52, 110,106.36 and 43,977.60

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Solution

The fourth proportional to 79,787.52, 110,106.36 and 43,977.60 is: 60,688.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,787.52 : 110,106.36 = 43,977.60 : x
  2. Step 2: Convert to fraction form
    79,787.52/110,106.36 = 43,977.60/x
  3. Step 3: Cross multiply
    79,787.52x = 110,106.36 × 43,977.60
  4. Step 4: Simplify right side
    79,787.52x = 4,842,213,457.54
  5. Step 5: Solve for x
    x = 4,842,213,457.54/79,787.52
  6. Step 6: Final answer
    x = 60,688.86

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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.