Home / 74,513.63-111,780.08-27,121.46

Finding the Fourth Proportional to 74,513.63, 111,780.08 and 27,121.46

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Solution

The fourth proportional to 74,513.63, 111,780.08 and 27,121.46 is: 40,685.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,513.63 : 111,780.08 = 27,121.46 : x
  2. Step 2: Convert to fraction form
    74,513.63/111,780.08 = 27,121.46/x
  3. Step 3: Cross multiply
    74,513.63x = 111,780.08 × 27,121.46
  4. Step 4: Simplify right side
    74,513.63x = 3,031,638,613.82
  5. Step 5: Solve for x
    x = 3,031,638,613.82/74,513.63
  6. Step 6: Final answer
    x = 40,685.69

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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.