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Finding the Fourth Proportional to 73,720, 101,698.56 and 49,855.04

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Solution

The fourth proportional to 73,720, 101,698.56 and 49,855.04 is: 68,776.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,720 : 101,698.56 = 49,855.04 : x
  2. Step 2: Convert to fraction form
    73,720/101,698.56 = 49,855.04/x
  3. Step 3: Cross multiply
    73,720x = 101,698.56 × 49,855.04
  4. Step 4: Simplify right side
    73,720x = 5,070,185,776.74
  5. Step 5: Solve for x
    x = 5,070,185,776.74/73,720
  6. Step 6: Final answer
    x = 68,776.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.