Home / 90,775.94-125,272.13-54,969.30

Finding the Fourth Proportional to 90,775.94, 125,272.13 and 54,969.30

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Solution

The fourth proportional to 90,775.94, 125,272.13 and 54,969.30 is: 75,858.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,775.94 : 125,272.13 = 54,969.30 : x
  2. Step 2: Convert to fraction form
    90,775.94/125,272.13 = 54,969.30/x
  3. Step 3: Cross multiply
    90,775.94x = 125,272.13 × 54,969.30
  4. Step 4: Simplify right side
    90,775.94x = 6,886,121,020.76
  5. Step 5: Solve for x
    x = 6,886,121,020.76/90,775.94
  6. Step 6: Final answer
    x = 75,858.44

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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.