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Finding the Fourth Proportional to 66,346.88, 91,559.04 and 36,132.80

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Solution

The fourth proportional to 66,346.88, 91,559.04 and 36,132.80 is: 49,863.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,346.88 : 91,559.04 = 36,132.80 : x
  2. Step 2: Convert to fraction form
    66,346.88/91,559.04 = 36,132.80/x
  3. Step 3: Cross multiply
    66,346.88x = 91,559.04 × 36,132.80
  4. Step 4: Simplify right side
    66,346.88x = 3,308,284,480.51
  5. Step 5: Solve for x
    x = 3,308,284,480.51/66,346.88
  6. Step 6: Final answer
    x = 49,863.45

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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.