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Finding the Fourth Proportional to 67,370.39, 101,026.25 and 19,328.40

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Solution

The fourth proportional to 67,370.39, 101,026.25 and 19,328.40 is: 28,984.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,370.39 : 101,026.25 = 19,328.40 : x
  2. Step 2: Convert to fraction form
    67,370.39/101,026.25 = 19,328.40/x
  3. Step 3: Cross multiply
    67,370.39x = 101,026.25 × 19,328.40
  4. Step 4: Simplify right side
    67,370.39x = 1,952,675,673.86
  5. Step 5: Solve for x
    x = 1,952,675,673.86/67,370.39
  6. Step 6: Final answer
    x = 28,984.18

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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.