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Finding the Fourth Proportional to 73,440, 110,159.73 and 20,849.49

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Solution

The fourth proportional to 73,440, 110,159.73 and 20,849.49 is: 31,274.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,440 : 110,159.73 = 20,849.49 : x
  2. Step 2: Convert to fraction form
    73,440/110,159.73 = 20,849.49/x
  3. Step 3: Cross multiply
    73,440x = 110,159.73 × 20,849.49
  4. Step 4: Simplify right side
    73,440x = 2,296,774,189.04
  5. Step 5: Solve for x
    x = 2,296,774,189.04/73,440
  6. Step 6: Final answer
    x = 31,274.16

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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.