Home / 80,968.02-111,735.57-45,157.14

Finding the Fourth Proportional to 80,968.02, 111,735.57 and 45,157.14

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Solution

The fourth proportional to 80,968.02, 111,735.57 and 45,157.14 is: 62,316.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,968.02 : 111,735.57 = 45,157.14 : x
  2. Step 2: Convert to fraction form
    80,968.02/111,735.57 = 45,157.14/x
  3. Step 3: Cross multiply
    80,968.02x = 111,735.57 × 45,157.14
  4. Step 4: Simplify right side
    80,968.02x = 5,045,658,777.47
  5. Step 5: Solve for x
    x = 5,045,658,777.47/80,968.02
  6. Step 6: Final answer
    x = 62,316.69

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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.