Home / 49,870.98-74,806.26-20,288.57

Finding the Fourth Proportional to 49,870.98, 74,806.26 and 20,288.57

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Solution

The fourth proportional to 49,870.98, 74,806.26 and 20,288.57 is: 30,432.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,870.98 : 74,806.26 = 20,288.57 : x
  2. Step 2: Convert to fraction form
    49,870.98/74,806.26 = 20,288.57/x
  3. Step 3: Cross multiply
    49,870.98x = 74,806.26 × 20,288.57
  4. Step 4: Simplify right side
    49,870.98x = 1,517,712,042.45
  5. Step 5: Solve for x
    x = 1,517,712,042.45/49,870.98
  6. Step 6: Final answer
    x = 30,432.77

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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.