Home / 49,428.40-74,122.80-18,256.72

Finding the Fourth Proportional to 49,428.40, 74,122.80 and 18,256.72

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Solution

The fourth proportional to 49,428.40, 74,122.80 and 18,256.72 is: 27,377.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,428.40 : 74,122.80 = 18,256.72 : x
  2. Step 2: Convert to fraction form
    49,428.40/74,122.80 = 18,256.72/x
  3. Step 3: Cross multiply
    49,428.40x = 74,122.80 × 18,256.72
  4. Step 4: Simplify right side
    49,428.40x = 1,353,239,205.22
  5. Step 5: Solve for x
    x = 1,353,239,205.22/49,428.40
  6. Step 6: Final answer
    x = 27,377.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.