Home / 90,858.80-125,370.18-50,571.53

Finding the Fourth Proportional to 90,858.80, 125,370.18 and 50,571.53

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Solution

The fourth proportional to 90,858.80, 125,370.18 and 50,571.53 is: 69,780.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,858.80 : 125,370.18 = 50,571.53 : x
  2. Step 2: Convert to fraction form
    90,858.80/125,370.18 = 50,571.53/x
  3. Step 3: Cross multiply
    90,858.80x = 125,370.18 × 50,571.53
  4. Step 4: Simplify right side
    90,858.80x = 6,340,161,192.12
  5. Step 5: Solve for x
    x = 6,340,161,192.12/90,858.80
  6. Step 6: Final answer
    x = 69,780.38

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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.