Home / 90,789.84-125,293.10-49,955.72

Finding the Fourth Proportional to 90,789.84, 125,293.10 and 49,955.72

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Solution

The fourth proportional to 90,789.84, 125,293.10 and 49,955.72 is: 68,940.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,789.84 : 125,293.10 = 49,955.72 : x
  2. Step 2: Convert to fraction form
    90,789.84/125,293.10 = 49,955.72/x
  3. Step 3: Cross multiply
    90,789.84x = 125,293.10 × 49,955.72
  4. Step 4: Simplify right side
    90,789.84x = 6,259,106,145.29
  5. Step 5: Solve for x
    x = 6,259,106,145.29/90,789.84
  6. Step 6: Final answer
    x = 68,940.60

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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.