Home / 66,114.40-91,238-35,899.80

Finding the Fourth Proportional to 66,114.40, 91,238 and 35,899.80

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Solution

The fourth proportional to 66,114.40, 91,238 and 35,899.80 is: 49,541.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,114.40 : 91,238 = 35,899.80 : x
  2. Step 2: Convert to fraction form
    66,114.40/91,238 = 35,899.80/x
  3. Step 3: Cross multiply
    66,114.40x = 91,238 × 35,899.80
  4. Step 4: Simplify right side
    66,114.40x = 3,275,425,952.40
  5. Step 5: Solve for x
    x = 3,275,425,952.40/66,114.40
  6. Step 6: Final answer
    x = 49,541.79

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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.