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Finding the Fourth Proportional to 70,930.44, 106,411.24 and 21,014.44

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Solution

The fourth proportional to 70,930.44, 106,411.24 and 21,014.44 is: 31,526.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,930.44 : 106,411.24 = 21,014.44 : x
  2. Step 2: Convert to fraction form
    70,930.44/106,411.24 = 21,014.44/x
  3. Step 3: Cross multiply
    70,930.44x = 106,411.24 × 21,014.44
  4. Step 4: Simplify right side
    70,930.44x = 2,236,172,618.31
  5. Step 5: Solve for x
    x = 2,236,172,618.31/70,930.44
  6. Step 6: Final answer
    x = 31,526.28

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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.