Home / 73,968.98-102,077.22-39,977.36

Finding the Fourth Proportional to 73,968.98, 102,077.22 and 39,977.36

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Solution

The fourth proportional to 73,968.98, 102,077.22 and 39,977.36 is: 55,168.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,968.98 : 102,077.22 = 39,977.36 : x
  2. Step 2: Convert to fraction form
    73,968.98/102,077.22 = 39,977.36/x
  3. Step 3: Cross multiply
    73,968.98x = 102,077.22 × 39,977.36
  4. Step 4: Simplify right side
    73,968.98x = 4,080,777,771.74
  5. Step 5: Solve for x
    x = 4,080,777,771.74/73,968.98
  6. Step 6: Final answer
    x = 55,168.77

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1.5x scale

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.