Home / 67,069.47-100,619.75-19,682.64

Finding the Fourth Proportional to 67,069.47, 100,619.75 and 19,682.64

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Solution

The fourth proportional to 67,069.47, 100,619.75 and 19,682.64 is: 29,528.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,069.47 : 100,619.75 = 19,682.64 : x
  2. Step 2: Convert to fraction form
    67,069.47/100,619.75 = 19,682.64/x
  3. Step 3: Cross multiply
    67,069.47x = 100,619.75 × 19,682.64
  4. Step 4: Simplify right side
    67,069.47x = 1,980,462,316.14
  5. Step 5: Solve for x
    x = 1,980,462,316.14/67,069.47
  6. Step 6: Final answer
    x = 29,528.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.