Home / 66,436.89-91,681.67-36,222.47

Finding the Fourth Proportional to 66,436.89, 91,681.67 and 36,222.47

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Solution

The fourth proportional to 66,436.89, 91,681.67 and 36,222.47 is: 49,986.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,436.89 : 91,681.67 = 36,222.47 : x
  2. Step 2: Convert to fraction form
    66,436.89/91,681.67 = 36,222.47/x
  3. Step 3: Cross multiply
    66,436.89x = 91,681.67 × 36,222.47
  4. Step 4: Simplify right side
    66,436.89x = 3,320,936,541.12
  5. Step 5: Solve for x
    x = 3,320,936,541.12/66,436.89
  6. Step 6: Final answer
    x = 49,986.33

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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.