Home / 66,209.85-91,359.02-43,558.00

Finding the Fourth Proportional to 66,209.85, 91,359.02 and 43,558.00

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Solution

The fourth proportional to 66,209.85, 91,359.02 and 43,558.00 is: 60,103.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,209.85 : 91,359.02 = 43,558.00 : x
  2. Step 2: Convert to fraction form
    66,209.85/91,359.02 = 43,558.00/x
  3. Step 3: Cross multiply
    66,209.85x = 91,359.02 × 43,558.00
  4. Step 4: Simplify right side
    66,209.85x = 3,979,416,073.66
  5. Step 5: Solve for x
    x = 3,979,416,073.66/66,209.85
  6. Step 6: Final answer
    x = 60,103.08

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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.