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Finding the Fourth Proportional to 66,870.16, 100,305.03 and 16,950.11

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Solution

The fourth proportional to 66,870.16, 100,305.03 and 16,950.11 is: 25,425.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,870.16 : 100,305.03 = 16,950.11 : x
  2. Step 2: Convert to fraction form
    66,870.16/100,305.03 = 16,950.11/x
  3. Step 3: Cross multiply
    66,870.16x = 100,305.03 × 16,950.11
  4. Step 4: Simplify right side
    66,870.16x = 1,700,181,292.05
  5. Step 5: Solve for x
    x = 1,700,181,292.05/66,870.16
  6. Step 6: Final answer
    x = 25,425.11

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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.