Home / 79,211.54-109,271.09-53,709.30

Finding the Fourth Proportional to 79,211.54, 109,271.09 and 53,709.30

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Solution

The fourth proportional to 79,211.54, 109,271.09 and 53,709.30 is: 74,091.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,211.54 : 109,271.09 = 53,709.30 : x
  2. Step 2: Convert to fraction form
    79,211.54/109,271.09 = 53,709.30/x
  3. Step 3: Cross multiply
    79,211.54x = 109,271.09 × 53,709.30
  4. Step 4: Simplify right side
    79,211.54x = 5,868,873,888.41
  5. Step 5: Solve for x
    x = 5,868,873,888.41/79,211.54
  6. Step 6: Final answer
    x = 74,091.15

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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.