Home / 90,828.75-136,265.01-28,499.25

Finding the Fourth Proportional to 90,828.75, 136,265.01 and 28,499.25

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Solution

The fourth proportional to 90,828.75, 136,265.01 and 28,499.25 is: 42,755.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,828.75 : 136,265.01 = 28,499.25 : x
  2. Step 2: Convert to fraction form
    90,828.75/136,265.01 = 28,499.25/x
  3. Step 3: Cross multiply
    90,828.75x = 136,265.01 × 28,499.25
  4. Step 4: Simplify right side
    90,828.75x = 3,883,450,586.24
  5. Step 5: Solve for x
    x = 3,883,450,586.24/90,828.75
  6. Step 6: Final answer
    x = 42,755.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.