Home / 72,057.74-108,319.08-66,817.04

Finding the Fourth Proportional to 72,057.74, 108,319.08 and 66,817.04

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Solution

The fourth proportional to 72,057.74, 108,319.08 and 66,817.04 is: 100,441.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,057.74 : 108,319.08 = 66,817.04 : x
  2. Step 2: Convert to fraction form
    72,057.74/108,319.08 = 66,817.04/x
  3. Step 3: Cross multiply
    72,057.74x = 108,319.08 × 66,817.04
  4. Step 4: Simplify right side
    72,057.74x = 7,237,560,301.12
  5. Step 5: Solve for x
    x = 7,237,560,301.12/72,057.74
  6. Step 6: Final answer
    x = 100,441.12

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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.