Home / 92,948.72-128,271.20-55,222.97

Finding the Fourth Proportional to 92,948.72, 128,271.20 and 55,222.97

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Solution

The fourth proportional to 92,948.72, 128,271.20 and 55,222.97 is: 76,208.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,948.72 : 128,271.20 = 55,222.97 : x
  2. Step 2: Convert to fraction form
    92,948.72/128,271.20 = 55,222.97/x
  3. Step 3: Cross multiply
    92,948.72x = 128,271.20 × 55,222.97
  4. Step 4: Simplify right side
    92,948.72x = 7,083,515,711.99
  5. Step 5: Solve for x
    x = 7,083,515,711.99/92,948.72
  6. Step 6: Final answer
    x = 76,208.86

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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.