Home / 90,928.73-136,414.56-28,599.23

Finding the Fourth Proportional to 90,928.73, 136,414.56 and 28,599.23

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Solution

The fourth proportional to 90,928.73, 136,414.56 and 28,599.23 is: 42,905.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,928.73 : 136,414.56 = 28,599.23 : x
  2. Step 2: Convert to fraction form
    90,928.73/136,414.56 = 28,599.23/x
  3. Step 3: Cross multiply
    90,928.73x = 136,414.56 × 28,599.23
  4. Step 4: Simplify right side
    90,928.73x = 3,901,351,376.79
  5. Step 5: Solve for x
    x = 3,901,351,376.79/90,928.73
  6. Step 6: Final answer
    x = 42,905.60

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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.