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Finding the Fourth Proportional to 53,194.78, 79,803.90 and 15,757.80

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Solution

The fourth proportional to 53,194.78, 79,803.90 and 15,757.80 is: 23,640.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,194.78 : 79,803.90 = 15,757.80 : x
  2. Step 2: Convert to fraction form
    53,194.78/79,803.90 = 15,757.80/x
  3. Step 3: Cross multiply
    53,194.78x = 79,803.90 × 15,757.80
  4. Step 4: Simplify right side
    53,194.78x = 1,257,533,895.42
  5. Step 5: Solve for x
    x = 1,257,533,895.42/53,194.78
  6. Step 6: Final answer
    x = 23,640.17

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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.