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Finding the Fourth Proportional to 53,204.40, 79,806.60 and 35,578.80

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Solution

The fourth proportional to 53,204.40, 79,806.60 and 35,578.80 is: 53,368.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,204.40 : 79,806.60 = 35,578.80 : x
  2. Step 2: Convert to fraction form
    53,204.40/79,806.60 = 35,578.80/x
  3. Step 3: Cross multiply
    53,204.40x = 79,806.60 × 35,578.80
  4. Step 4: Simplify right side
    53,204.40x = 2,839,423,060.08
  5. Step 5: Solve for x
    x = 2,839,423,060.08/53,204.40
  6. Step 6: Final answer
    x = 53,368.20

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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.