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Finding the Fourth Proportional to 72,806.18, 100,503.51 and 48,946.68

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Solution

The fourth proportional to 72,806.18, 100,503.51 and 48,946.68 is: 67,567.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,806.18 : 100,503.51 = 48,946.68 : x
  2. Step 2: Convert to fraction form
    72,806.18/100,503.51 = 48,946.68/x
  3. Step 3: Cross multiply
    72,806.18x = 100,503.51 × 48,946.68
  4. Step 4: Simplify right side
    72,806.18x = 4,919,313,142.85
  5. Step 5: Solve for x
    x = 4,919,313,142.85/72,806.18
  6. Step 6: Final answer
    x = 67,567.25

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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.