Home / 90,709.98-125,175.66-50,423.58

Finding the Fourth Proportional to 90,709.98, 125,175.66 and 50,423.58

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Solution

The fourth proportional to 90,709.98, 125,175.66 and 50,423.58 is: 69,582.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,709.98 : 125,175.66 = 50,423.58 : x
  2. Step 2: Convert to fraction form
    90,709.98/125,175.66 = 50,423.58/x
  3. Step 3: Cross multiply
    90,709.98x = 125,175.66 × 50,423.58
  4. Step 4: Simplify right side
    90,709.98x = 6,311,804,906.06
  5. Step 5: Solve for x
    x = 6,311,804,906.06/90,709.98
  6. Step 6: Final answer
    x = 69,582.25

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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.