Home / 90,435.49-124,801.31-50,152.97

Finding the Fourth Proportional to 90,435.49, 124,801.31 and 50,152.97

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Solution

The fourth proportional to 90,435.49, 124,801.31 and 50,152.97 is: 69,211.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,435.49 : 124,801.31 = 50,152.97 : x
  2. Step 2: Convert to fraction form
    90,435.49/124,801.31 = 50,152.97/x
  3. Step 3: Cross multiply
    90,435.49x = 124,801.31 × 50,152.97
  4. Step 4: Simplify right side
    90,435.49x = 6,259,156,511.67
  5. Step 5: Solve for x
    x = 6,259,156,511.67/90,435.49
  6. Step 6: Final answer
    x = 69,211.29

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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.