Home / 90,276.84-124,580.50-49,989.73

Finding the Fourth Proportional to 90,276.84, 124,580.50 and 49,989.73

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Solution

The fourth proportional to 90,276.84, 124,580.50 and 49,989.73 is: 68,984.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,276.84 : 124,580.50 = 49,989.73 : x
  2. Step 2: Convert to fraction form
    90,276.84/124,580.50 = 49,989.73/x
  3. Step 3: Cross multiply
    90,276.84x = 124,580.50 × 49,989.73
  4. Step 4: Simplify right side
    90,276.84x = 6,227,745,558.27
  5. Step 5: Solve for x
    x = 6,227,745,558.27/90,276.84
  6. Step 6: Final answer
    x = 68,984.98

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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.