Home / 66,310.53-91,543.28-51,170.43

Finding the Fourth Proportional to 66,310.53, 91,543.28 and 51,170.43

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Solution

The fourth proportional to 66,310.53, 91,543.28 and 51,170.43 is: 70,642.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,310.53 : 91,543.28 = 51,170.43 : x
  2. Step 2: Convert to fraction form
    66,310.53/91,543.28 = 51,170.43/x
  3. Step 3: Cross multiply
    66,310.53x = 91,543.28 × 51,170.43
  4. Step 4: Simplify right side
    66,310.53x = 4,684,308,745.36
  5. Step 5: Solve for x
    x = 4,684,308,745.36/66,310.53
  6. Step 6: Final answer
    x = 70,642.00

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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.