Home / 66,255.04-91,401.24-39,382.48

Finding the Fourth Proportional to 66,255.04, 91,401.24 and 39,382.48

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Solution

The fourth proportional to 66,255.04, 91,401.24 and 39,382.48 is: 54,329.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,255.04 : 91,401.24 = 39,382.48 : x
  2. Step 2: Convert to fraction form
    66,255.04/91,401.24 = 39,382.48/x
  3. Step 3: Cross multiply
    66,255.04x = 91,401.24 × 39,382.48
  4. Step 4: Simplify right side
    66,255.04x = 3,599,607,506.28
  5. Step 5: Solve for x
    x = 3,599,607,506.28/66,255.04
  6. Step 6: Final answer
    x = 54,329.57

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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.