Home / 90,749.94-125,237.95-49,915.79

Finding the Fourth Proportional to 90,749.94, 125,237.95 and 49,915.79

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Solution

The fourth proportional to 90,749.94, 125,237.95 and 49,915.79 is: 68,885.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,749.94 : 125,237.95 = 49,915.79 : x
  2. Step 2: Convert to fraction form
    90,749.94/125,237.95 = 49,915.79/x
  3. Step 3: Cross multiply
    90,749.94x = 125,237.95 × 49,915.79
  4. Step 4: Simplify right side
    90,749.94x = 6,251,351,635.36
  5. Step 5: Solve for x
    x = 6,251,351,635.36/90,749.94
  6. Step 6: Final answer
    x = 68,885.46

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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.