Home / 90,991.52-125,575.60-50,718.32

Finding the Fourth Proportional to 90,991.52, 125,575.60 and 50,718.32

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Solution

The fourth proportional to 90,991.52, 125,575.60 and 50,718.32 is: 69,995.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,991.52 : 125,575.60 = 50,718.32 : x
  2. Step 2: Convert to fraction form
    90,991.52/125,575.60 = 50,718.32/x
  3. Step 3: Cross multiply
    90,991.52x = 125,575.60 × 50,718.32
  4. Step 4: Simplify right side
    90,991.52x = 6,368,983,464.99
  5. Step 5: Solve for x
    x = 6,368,983,464.99/90,991.52
  6. Step 6: Final answer
    x = 69,995.35

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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.