Home / 66,106.08-99,170.16-21,723.12

Finding the Fourth Proportional to 66,106.08, 99,170.16 and 21,723.12

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Solution

The fourth proportional to 66,106.08, 99,170.16 and 21,723.12 is: 32,588.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,106.08 : 99,170.16 = 21,723.12 : x
  2. Step 2: Convert to fraction form
    66,106.08/99,170.16 = 21,723.12/x
  3. Step 3: Cross multiply
    66,106.08x = 99,170.16 × 21,723.12
  4. Step 4: Simplify right side
    66,106.08x = 2,154,285,286.10
  5. Step 5: Solve for x
    x = 2,154,285,286.10/66,106.08
  6. Step 6: Final answer
    x = 32,588.31

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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.