Home / 66,139.57-91,273.30-35,925.48

Finding the Fourth Proportional to 66,139.57, 91,273.30 and 35,925.48

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Solution

The fourth proportional to 66,139.57, 91,273.30 and 35,925.48 is: 49,577.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,139.57 : 91,273.30 = 35,925.48 : x
  2. Step 2: Convert to fraction form
    66,139.57/91,273.30 = 35,925.48/x
  3. Step 3: Cross multiply
    66,139.57x = 91,273.30 × 35,925.48
  4. Step 4: Simplify right side
    66,139.57x = 3,279,037,252.05
  5. Step 5: Solve for x
    x = 3,279,037,252.05/66,139.57
  6. Step 6: Final answer
    x = 49,577.54

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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.