Home / 79,157.10-109,235.31-43,346.46

Finding the Fourth Proportional to 79,157.10, 109,235.31 and 43,346.46

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Solution

The fourth proportional to 79,157.10, 109,235.31 and 43,346.46 is: 59,817.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,157.10 : 109,235.31 = 43,346.46 : x
  2. Step 2: Convert to fraction form
    79,157.10/109,235.31 = 43,346.46/x
  3. Step 3: Cross multiply
    79,157.10x = 109,235.31 × 43,346.46
  4. Step 4: Simplify right side
    79,157.10x = 4,734,963,995.50
  5. Step 5: Solve for x
    x = 4,734,963,995.50/79,157.10
  6. Step 6: Final answer
    x = 59,817.30

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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.