Home / 52,749.12-79,128.96-19,477.92

Finding the Fourth Proportional to 52,749.12, 79,128.96 and 19,477.92

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Solution

The fourth proportional to 52,749.12, 79,128.96 and 19,477.92 is: 29,218.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,749.12 : 79,128.96 = 19,477.92 : x
  2. Step 2: Convert to fraction form
    52,749.12/79,128.96 = 19,477.92/x
  3. Step 3: Cross multiply
    52,749.12x = 79,128.96 × 19,477.92
  4. Step 4: Simplify right side
    52,749.12x = 1,541,267,552.56
  5. Step 5: Solve for x
    x = 1,541,267,552.56/52,749.12
  6. Step 6: Final answer
    x = 29,218.83

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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.