Home / 66,640.72-91,993.80-50,725.84

Finding the Fourth Proportional to 66,640.72, 91,993.80 and 50,725.84

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Solution

The fourth proportional to 66,640.72, 91,993.80 and 50,725.84 is: 70,024.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,640.72 : 91,993.80 = 50,725.84 : x
  2. Step 2: Convert to fraction form
    66,640.72/91,993.80 = 50,725.84/x
  3. Step 3: Cross multiply
    66,640.72x = 91,993.80 × 50,725.84
  4. Step 4: Simplify right side
    66,640.72x = 4,666,462,779.79
  5. Step 5: Solve for x
    x = 4,666,462,779.79/66,640.72
  6. Step 6: Final answer
    x = 70,024.20

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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.