Home / 76,790.27-115,184.94-19,864.18

Finding the Fourth Proportional to 76,790.27, 115,184.94 and 19,864.18

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Solution

The fourth proportional to 76,790.27, 115,184.94 and 19,864.18 is: 29,796.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,790.27 : 115,184.94 = 19,864.18 : x
  2. Step 2: Convert to fraction form
    76,790.27/115,184.94 = 19,864.18/x
  3. Step 3: Cross multiply
    76,790.27x = 115,184.94 × 19,864.18
  4. Step 4: Simplify right side
    76,790.27x = 2,288,054,381.45
  5. Step 5: Solve for x
    x = 2,288,054,381.45/76,790.27
  6. Step 6: Final answer
    x = 29,796.15

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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.