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Finding the Fourth Proportional to 70,882.36, 106,323.96 and 18,292.30

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Solution

The fourth proportional to 70,882.36, 106,323.96 and 18,292.30 is: 27,438.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,882.36 : 106,323.96 = 18,292.30 : x
  2. Step 2: Convert to fraction form
    70,882.36/106,323.96 = 18,292.30/x
  3. Step 3: Cross multiply
    70,882.36x = 106,323.96 × 18,292.30
  4. Step 4: Simplify right side
    70,882.36x = 1,944,909,773.51
  5. Step 5: Solve for x
    x = 1,944,909,773.51/70,882.36
  6. Step 6: Final answer
    x = 27,438.56

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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.