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Finding the Fourth Proportional to 70,272.90, 105,422.31 and 22,253.62

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Solution

The fourth proportional to 70,272.90, 105,422.31 and 22,253.62 is: 33,384.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,272.90 : 105,422.31 = 22,253.62 : x
  2. Step 2: Convert to fraction form
    70,272.90/105,422.31 = 22,253.62/x
  3. Step 3: Cross multiply
    70,272.90x = 105,422.31 × 22,253.62
  4. Step 4: Simplify right side
    70,272.90x = 2,346,028,026.26
  5. Step 5: Solve for x
    x = 2,346,028,026.26/70,272.90
  6. Step 6: Final answer
    x = 33,384.53

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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.