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Finding the Fourth Proportional to 72,262.63, 108,437.68 and 30,709.63

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Solution

The fourth proportional to 72,262.63, 108,437.68 and 30,709.63 is: 46,083.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,262.63 : 108,437.68 = 30,709.63 : x
  2. Step 2: Convert to fraction form
    72,262.63/108,437.68 = 30,709.63/x
  3. Step 3: Cross multiply
    72,262.63x = 108,437.68 × 30,709.63
  4. Step 4: Simplify right side
    72,262.63x = 3,330,080,488.67
  5. Step 5: Solve for x
    x = 3,330,080,488.67/72,262.63
  6. Step 6: Final answer
    x = 46,083.03

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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.