Home / 90,277.61-124,581.57-49,990.50

Finding the Fourth Proportional to 90,277.61, 124,581.57 and 49,990.50

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Solution

The fourth proportional to 90,277.61, 124,581.57 and 49,990.50 is: 68,986.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,277.61 : 124,581.57 = 49,990.50 : x
  2. Step 2: Convert to fraction form
    90,277.61/124,581.57 = 49,990.50/x
  3. Step 3: Cross multiply
    90,277.61x = 124,581.57 × 49,990.50
  4. Step 4: Simplify right side
    90,277.61x = 6,227,894,975.09
  5. Step 5: Solve for x
    x = 6,227,894,975.09/90,277.61
  6. Step 6: Final answer
    x = 68,986.04

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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.