Home / 90,573.25-135,728.56-51,046.24

Finding the Fourth Proportional to 90,573.25, 135,728.56 and 51,046.24

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Solution

The fourth proportional to 90,573.25, 135,728.56 and 51,046.24 is: 76,495.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,573.25 : 135,728.56 = 51,046.24 : x
  2. Step 2: Convert to fraction form
    90,573.25/135,728.56 = 51,046.24/x
  3. Step 3: Cross multiply
    90,573.25x = 135,728.56 × 51,046.24
  4. Step 4: Simplify right side
    90,573.25x = 6,928,432,648.61
  5. Step 5: Solve for x
    x = 6,928,432,648.61/90,573.25
  6. Step 6: Final answer
    x = 76,495.35

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1.5x scale

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.