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Finding the Fourth Proportional to 40,201.80, 60,302.70 and 28,537.80

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Solution

The fourth proportional to 40,201.80, 60,302.70 and 28,537.80 is: 42,806.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,201.80 : 60,302.70 = 28,537.80 : x
  2. Step 2: Convert to fraction form
    40,201.80/60,302.70 = 28,537.80/x
  3. Step 3: Cross multiply
    40,201.80x = 60,302.70 × 28,537.80
  4. Step 4: Simplify right side
    40,201.80x = 1,720,906,392.06
  5. Step 5: Solve for x
    x = 1,720,906,392.06/40,201.80
  6. Step 6: Final answer
    x = 42,806.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.