Home / 66,790.89-92,179.96-38,496.78

Finding the Fourth Proportional to 66,790.89, 92,179.96 and 38,496.78

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Solution

The fourth proportional to 66,790.89, 92,179.96 and 38,496.78 is: 53,130.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,790.89 : 92,179.96 = 38,496.78 : x
  2. Step 2: Convert to fraction form
    66,790.89/92,179.96 = 38,496.78/x
  3. Step 3: Cross multiply
    66,790.89x = 92,179.96 × 38,496.78
  4. Step 4: Simplify right side
    66,790.89x = 3,548,631,544.29
  5. Step 5: Solve for x
    x = 3,548,631,544.29/66,790.89
  6. Step 6: Final answer
    x = 53,130.47

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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.