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Finding the Fourth Proportional to 53,078.46, 79,615.63 and 19,798.46

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Solution

The fourth proportional to 53,078.46, 79,615.63 and 19,798.46 is: 29,696.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,078.46 : 79,615.63 = 19,798.46 : x
  2. Step 2: Convert to fraction form
    53,078.46/79,615.63 = 19,798.46/x
  3. Step 3: Cross multiply
    53,078.46x = 79,615.63 × 19,798.46
  4. Step 4: Simplify right side
    53,078.46x = 1,576,266,766.94
  5. Step 5: Solve for x
    x = 1,576,266,766.94/53,078.46
  6. Step 6: Final answer
    x = 29,696.92

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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.