Home / 90,842.09-125,361.10-50,555.17

Finding the Fourth Proportional to 90,842.09, 125,361.10 and 50,555.17

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Solution

The fourth proportional to 90,842.09, 125,361.10 and 50,555.17 is: 69,765.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,842.09 : 125,361.10 = 50,555.17 : x
  2. Step 2: Convert to fraction form
    90,842.09/125,361.10 = 50,555.17/x
  3. Step 3: Cross multiply
    90,842.09x = 125,361.10 × 50,555.17
  4. Step 4: Simplify right side
    90,842.09x = 6,337,651,721.89
  5. Step 5: Solve for x
    x = 6,337,651,721.89/90,842.09
  6. Step 6: Final answer
    x = 69,765.59

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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.