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Finding the Fourth Proportional to 79,660.98, 109,870.75 and 49,464.18

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Solution

The fourth proportional to 79,660.98, 109,870.75 and 49,464.18 is: 68,222.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,660.98 : 109,870.75 = 49,464.18 : x
  2. Step 2: Convert to fraction form
    79,660.98/109,870.75 = 49,464.18/x
  3. Step 3: Cross multiply
    79,660.98x = 109,870.75 × 49,464.18
  4. Step 4: Simplify right side
    79,660.98x = 5,434,666,554.74
  5. Step 5: Solve for x
    x = 5,434,666,554.74/79,660.98
  6. Step 6: Final answer
    x = 68,222.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.