Home / 90,653.94-125,110.89-54,852.78

Finding the Fourth Proportional to 90,653.94, 125,110.89 and 54,852.78

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Solution

The fourth proportional to 90,653.94, 125,110.89 and 54,852.78 is: 75,701.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,653.94 : 125,110.89 = 54,852.78 : x
  2. Step 2: Convert to fraction form
    90,653.94/125,110.89 = 54,852.78/x
  3. Step 3: Cross multiply
    90,653.94x = 125,110.89 × 54,852.78
  4. Step 4: Simplify right side
    90,653.94x = 6,862,680,124.77
  5. Step 5: Solve for x
    x = 6,862,680,124.77/90,653.94
  6. Step 6: Final answer
    x = 75,701.95

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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.