Home / 90,148.79-124,396.95-49,861.68

Finding the Fourth Proportional to 90,148.79, 124,396.95 and 49,861.68

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Solution

The fourth proportional to 90,148.79, 124,396.95 and 49,861.68 is: 68,804.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,148.79 : 124,396.95 = 49,861.68 : x
  2. Step 2: Convert to fraction form
    90,148.79/124,396.95 = 49,861.68/x
  3. Step 3: Cross multiply
    90,148.79x = 124,396.95 × 49,861.68
  4. Step 4: Simplify right side
    90,148.79x = 6,202,640,913.88
  5. Step 5: Solve for x
    x = 6,202,640,913.88/90,148.79
  6. Step 6: Final answer
    x = 68,804.49

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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.