Home / 73,969.23-102,077.55-39,977.60

Finding the Fourth Proportional to 73,969.23, 102,077.55 and 39,977.60

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Solution

The fourth proportional to 73,969.23, 102,077.55 and 39,977.60 is: 55,169.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,969.23 : 102,077.55 = 39,977.60 : x
  2. Step 2: Convert to fraction form
    73,969.23/102,077.55 = 39,977.60/x
  3. Step 3: Cross multiply
    73,969.23x = 102,077.55 × 39,977.60
  4. Step 4: Simplify right side
    73,969.23x = 4,080,815,718.07
  5. Step 5: Solve for x
    x = 4,080,815,718.07/73,969.23
  6. Step 6: Final answer
    x = 55,169.10

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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.