Home / 53,078.90-79,605.54-15,628.80

Finding the Fourth Proportional to 53,078.90, 79,605.54 and 15,628.80

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Solution

The fourth proportional to 53,078.90, 79,605.54 and 15,628.80 is: 23,439.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,078.90 : 79,605.54 = 15,628.80 : x
  2. Step 2: Convert to fraction form
    53,078.90/79,605.54 = 15,628.80/x
  3. Step 3: Cross multiply
    53,078.90x = 79,605.54 × 15,628.80
  4. Step 4: Simplify right side
    53,078.90x = 1,244,139,063.55
  5. Step 5: Solve for x
    x = 1,244,139,063.55/53,078.90
  6. Step 6: Final answer
    x = 23,439.43

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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.