Home / 66,987.12-92,343.54-51,043.92

Finding the Fourth Proportional to 66,987.12, 92,343.54 and 51,043.92

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Solution

The fourth proportional to 66,987.12, 92,343.54 and 51,043.92 is: 70,365.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,987.12 : 92,343.54 = 51,043.92 : x
  2. Step 2: Convert to fraction form
    66,987.12/92,343.54 = 51,043.92/x
  3. Step 3: Cross multiply
    66,987.12x = 92,343.54 × 51,043.92
  4. Step 4: Simplify right side
    66,987.12x = 4,713,576,268.28
  5. Step 5: Solve for x
    x = 4,713,576,268.28/66,987.12
  6. Step 6: Final answer
    x = 70,365.41

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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.