Home / 71,045.81-98,036.22-39,212.64

Finding the Fourth Proportional to 71,045.81, 98,036.22 and 39,212.64

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Solution

The fourth proportional to 71,045.81, 98,036.22 and 39,212.64 is: 54,109.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,045.81 : 98,036.22 = 39,212.64 : x
  2. Step 2: Convert to fraction form
    71,045.81/98,036.22 = 39,212.64/x
  3. Step 3: Cross multiply
    71,045.81x = 98,036.22 × 39,212.64
  4. Step 4: Simplify right side
    71,045.81x = 3,844,259,001.82
  5. Step 5: Solve for x
    x = 3,844,259,001.82/71,045.81
  6. Step 6: Final answer
    x = 54,109.58

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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.