Home / 51,222.78-70,691.67-28,558.71

Finding the Fourth Proportional to 51,222.78, 70,691.67 and 28,558.71

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Solution

The fourth proportional to 51,222.78, 70,691.67 and 28,558.71 is: 39,413.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,222.78 : 70,691.67 = 28,558.71 : x
  2. Step 2: Convert to fraction form
    51,222.78/70,691.67 = 28,558.71/x
  3. Step 3: Cross multiply
    51,222.78x = 70,691.67 × 28,558.71
  4. Step 4: Simplify right side
    51,222.78x = 2,018,862,902.95
  5. Step 5: Solve for x
    x = 2,018,862,902.95/51,222.78
  6. Step 6: Final answer
    x = 39,413.38

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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.