Home / 66,108.08-99,173.16-21,725.12

Finding the Fourth Proportional to 66,108.08, 99,173.16 and 21,725.12

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Solution

The fourth proportional to 66,108.08, 99,173.16 and 21,725.12 is: 32,591.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,108.08 : 99,173.16 = 21,725.12 : x
  2. Step 2: Convert to fraction form
    66,108.08/99,173.16 = 21,725.12/x
  3. Step 3: Cross multiply
    66,108.08x = 99,173.16 × 21,725.12
  4. Step 4: Simplify right side
    66,108.08x = 2,154,548,801.78
  5. Step 5: Solve for x
    x = 2,154,548,801.78/66,108.08
  6. Step 6: Final answer
    x = 32,591.31

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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.