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Finding the Fourth Proportional to 36,126, 54,290.88 and 21,341.52

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Solution

The fourth proportional to 36,126, 54,290.88 and 21,341.52 is: 32,072.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,126 : 54,290.88 = 21,341.52 : x
  2. Step 2: Convert to fraction form
    36,126/54,290.88 = 21,341.52/x
  3. Step 3: Cross multiply
    36,126x = 54,290.88 × 21,341.52
  4. Step 4: Simplify right side
    36,126x = 1,158,649,901.34
  5. Step 5: Solve for x
    x = 1,158,649,901.34/36,126
  6. Step 6: Final answer
    x = 32,072.47

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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.