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Finding the Fourth Proportional to 36,130, 54,296.88 and 21,345.52

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Solution

The fourth proportional to 36,130, 54,296.88 and 21,345.52 is: 32,078.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,130 : 54,296.88 = 21,345.52 : x
  2. Step 2: Convert to fraction form
    36,130/54,296.88 = 21,345.52/x
  3. Step 3: Cross multiply
    36,130x = 54,296.88 × 21,345.52
  4. Step 4: Simplify right side
    36,130x = 1,158,995,137.98
  5. Step 5: Solve for x
    x = 1,158,995,137.98/36,130
  6. Step 6: Final answer
    x = 32,078.47

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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.