Home / 90,074.94-124,295.67-51,821.34

Finding the Fourth Proportional to 90,074.94, 124,295.67 and 51,821.34

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Solution

The fourth proportional to 90,074.94, 124,295.67 and 51,821.34 is: 71,508.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,074.94 : 124,295.67 = 51,821.34 : x
  2. Step 2: Convert to fraction form
    90,074.94/124,295.67 = 51,821.34/x
  3. Step 3: Cross multiply
    90,074.94x = 124,295.67 × 51,821.34
  4. Step 4: Simplify right side
    90,074.94x = 6,441,168,175.60
  5. Step 5: Solve for x
    x = 6,441,168,175.60/90,074.94
  6. Step 6: Final answer
    x = 71,508.99

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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.