Home / 66,012.01-98,781.47-57,157.90

Finding the Fourth Proportional to 66,012.01, 98,781.47 and 57,157.90

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Solution

The fourth proportional to 66,012.01, 98,781.47 and 57,157.90 is: 85,532.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,012.01 : 98,781.47 = 57,157.90 : x
  2. Step 2: Convert to fraction form
    66,012.01/98,781.47 = 57,157.90/x
  3. Step 3: Cross multiply
    66,012.01x = 98,781.47 × 57,157.90
  4. Step 4: Simplify right side
    66,012.01x = 5,646,141,942.87
  5. Step 5: Solve for x
    x = 5,646,141,942.87/66,012.01
  6. Step 6: Final answer
    x = 85,532.04

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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.