Home / 90,628.86-125,087.82-50,356.46

Finding the Fourth Proportional to 90,628.86, 125,087.82 and 50,356.46

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Solution

The fourth proportional to 90,628.86, 125,087.82 and 50,356.46 is: 69,503.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,628.86 : 125,087.82 = 50,356.46 : x
  2. Step 2: Convert to fraction form
    90,628.86/125,087.82 = 50,356.46/x
  3. Step 3: Cross multiply
    90,628.86x = 125,087.82 × 50,356.46
  4. Step 4: Simplify right side
    90,628.86x = 6,298,979,804.32
  5. Step 5: Solve for x
    x = 6,298,979,804.32/90,628.86
  6. Step 6: Final answer
    x = 69,503.02

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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.