Home / 76,062.20-104,964-42,069.80

Finding the Fourth Proportional to 76,062.20, 104,964 and 42,069.80

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Solution

The fourth proportional to 76,062.20, 104,964 and 42,069.80 is: 58,055.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,062.20 : 104,964 = 42,069.80 : x
  2. Step 2: Convert to fraction form
    76,062.20/104,964 = 42,069.80/x
  3. Step 3: Cross multiply
    76,062.20x = 104,964 × 42,069.80
  4. Step 4: Simplify right side
    76,062.20x = 4,415,814,487.20
  5. Step 5: Solve for x
    x = 4,415,814,487.20/76,062.20
  6. Step 6: Final answer
    x = 58,055.31

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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.