Home / 79,051.95-109,102.14-45,072.72

Finding the Fourth Proportional to 79,051.95, 109,102.14 and 45,072.72

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Solution

The fourth proportional to 79,051.95, 109,102.14 and 45,072.72 is: 62,206.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,051.95 : 109,102.14 = 45,072.72 : x
  2. Step 2: Convert to fraction form
    79,051.95/109,102.14 = 45,072.72/x
  3. Step 3: Cross multiply
    79,051.95x = 109,102.14 × 45,072.72
  4. Step 4: Simplify right side
    79,051.95x = 4,917,530,207.62
  5. Step 5: Solve for x
    x = 4,917,530,207.62/79,051.95
  6. Step 6: Final answer
    x = 62,206.31

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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.