Home / 40,779.65-61,183.35-12,706.07

Finding the Fourth Proportional to 40,779.65, 61,183.35 and 12,706.07

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Solution

The fourth proportional to 40,779.65, 61,183.35 and 12,706.07 is: 19,063.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,779.65 : 61,183.35 = 12,706.07 : x
  2. Step 2: Convert to fraction form
    40,779.65/61,183.35 = 12,706.07/x
  3. Step 3: Cross multiply
    40,779.65x = 61,183.35 × 12,706.07
  4. Step 4: Simplify right side
    40,779.65x = 777,399,622.02
  5. Step 5: Solve for x
    x = 777,399,622.02/40,779.65
  6. Step 6: Final answer
    x = 19,063.42

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1.5x scale

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.