Home / 79,995.28-119,992.92-30,712.72

Finding the Fourth Proportional to 79,995.28, 119,992.92 and 30,712.72

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Solution

The fourth proportional to 79,995.28, 119,992.92 and 30,712.72 is: 46,069.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,995.28 : 119,992.92 = 30,712.72 : x
  2. Step 2: Convert to fraction form
    79,995.28/119,992.92 = 30,712.72/x
  3. Step 3: Cross multiply
    79,995.28x = 119,992.92 × 30,712.72
  4. Step 4: Simplify right side
    79,995.28x = 3,685,308,953.94
  5. Step 5: Solve for x
    x = 3,685,308,953.94/79,995.28
  6. Step 6: Final answer
    x = 46,069.08

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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.