Home / 55,059.12-75,987.96-51,681.24

Finding the Fourth Proportional to 55,059.12, 75,987.96 and 51,681.24

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Solution

The fourth proportional to 55,059.12, 75,987.96 and 51,681.24 is: 71,326.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,059.12 : 75,987.96 = 51,681.24 : x
  2. Step 2: Convert to fraction form
    55,059.12/75,987.96 = 51,681.24/x
  3. Step 3: Cross multiply
    55,059.12x = 75,987.96 × 51,681.24
  4. Step 4: Simplify right side
    55,059.12x = 3,927,151,997.87
  5. Step 5: Solve for x
    x = 3,927,151,997.87/55,059.12
  6. Step 6: Final answer
    x = 71,326.09

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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.