Home / 90,881.52-125,422.58-55,075.05

Finding the Fourth Proportional to 90,881.52, 125,422.58 and 55,075.05

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Solution

The fourth proportional to 90,881.52, 125,422.58 and 55,075.05 is: 76,007.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,881.52 : 125,422.58 = 55,075.05 : x
  2. Step 2: Convert to fraction form
    90,881.52/125,422.58 = 55,075.05/x
  3. Step 3: Cross multiply
    90,881.52x = 125,422.58 × 55,075.05
  4. Step 4: Simplify right side
    90,881.52x = 6,907,654,589.25
  5. Step 5: Solve for x
    x = 6,907,654,589.25/90,881.52
  6. Step 6: Final answer
    x = 76,007.25

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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.