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Finding the Fourth Proportional to 53,189.79, 79,796.40 and 15,752.80

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Solution

The fourth proportional to 53,189.79, 79,796.40 and 15,752.80 is: 23,632.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,189.79 : 79,796.40 = 15,752.80 : x
  2. Step 2: Convert to fraction form
    53,189.79/79,796.40 = 15,752.80/x
  3. Step 3: Cross multiply
    53,189.79x = 79,796.40 × 15,752.80
  4. Step 4: Simplify right side
    53,189.79x = 1,257,016,729.92
  5. Step 5: Solve for x
    x = 1,257,016,729.92/53,189.79
  6. Step 6: Final answer
    x = 23,632.67

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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.