Home / 66,761.31-92,141.34-38,090.33

Finding the Fourth Proportional to 66,761.31, 92,141.34 and 38,090.33

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Solution

The fourth proportional to 66,761.31, 92,141.34 and 38,090.33 is: 52,570.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,761.31 : 92,141.34 = 38,090.33 : x
  2. Step 2: Convert to fraction form
    66,761.31/92,141.34 = 38,090.33/x
  3. Step 3: Cross multiply
    66,761.31x = 92,141.34 × 38,090.33
  4. Step 4: Simplify right side
    66,761.31x = 3,509,694,047.24
  5. Step 5: Solve for x
    x = 3,509,694,047.24/66,761.31
  6. Step 6: Final answer
    x = 52,570.78

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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.