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Finding the Fourth Proportional to 75,293.25, 112,946.36 and 19,889.25

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Solution

The fourth proportional to 75,293.25, 112,946.36 and 19,889.25 is: 29,835.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,293.25 : 112,946.36 = 19,889.25 : x
  2. Step 2: Convert to fraction form
    75,293.25/112,946.36 = 19,889.25/x
  3. Step 3: Cross multiply
    75,293.25x = 112,946.36 × 19,889.25
  4. Step 4: Simplify right side
    75,293.25x = 2,246,418,291.18
  5. Step 5: Solve for x
    x = 2,246,418,291.18/75,293.25
  6. Step 6: Final answer
    x = 29,835.59

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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.