Home / 66,375.07-91,590.75-40,877.35

Finding the Fourth Proportional to 66,375.07, 91,590.75 and 40,877.35

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Solution

The fourth proportional to 66,375.07, 91,590.75 and 40,877.35 is: 56,406.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,375.07 : 91,590.75 = 40,877.35 : x
  2. Step 2: Convert to fraction form
    66,375.07/91,590.75 = 40,877.35/x
  3. Step 3: Cross multiply
    66,375.07x = 91,590.75 × 40,877.35
  4. Step 4: Simplify right side
    66,375.07x = 3,743,987,144.51
  5. Step 5: Solve for x
    x = 3,743,987,144.51/66,375.07
  6. Step 6: Final answer
    x = 56,406.53

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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.