Home / 40,702.09-61,061.87-12,621.54

Finding the Fourth Proportional to 40,702.09, 61,061.87 and 12,621.54

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Solution

The fourth proportional to 40,702.09, 61,061.87 and 12,621.54 is: 18,935.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,702.09 : 61,061.87 = 12,621.54 : x
  2. Step 2: Convert to fraction form
    40,702.09/61,061.87 = 12,621.54/x
  3. Step 3: Cross multiply
    40,702.09x = 61,061.87 × 12,621.54
  4. Step 4: Simplify right side
    40,702.09x = 770,694,771.57
  5. Step 5: Solve for x
    x = 770,694,771.57/40,702.09
  6. Step 6: Final answer
    x = 18,935.02

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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.