Home / 61,782.51-85,268.96-39,123.57

Finding the Fourth Proportional to 61,782.51, 85,268.96 and 39,123.57

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Solution

The fourth proportional to 61,782.51, 85,268.96 and 39,123.57 is: 53,996.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,782.51 : 85,268.96 = 39,123.57 : x
  2. Step 2: Convert to fraction form
    61,782.51/85,268.96 = 39,123.57/x
  3. Step 3: Cross multiply
    61,782.51x = 85,268.96 × 39,123.57
  4. Step 4: Simplify right side
    61,782.51x = 3,336,026,125.39
  5. Step 5: Solve for x
    x = 3,336,026,125.39/61,782.51
  6. Step 6: Final answer
    x = 53,996.29

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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.