Home / 61,693.31-85,150.82-40,145.08

Finding the Fourth Proportional to 61,693.31, 85,150.82 and 40,145.08

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Solution

The fourth proportional to 61,693.31, 85,150.82 and 40,145.08 is: 55,409.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,693.31 : 85,150.82 = 40,145.08 : x
  2. Step 2: Convert to fraction form
    61,693.31/85,150.82 = 40,145.08/x
  3. Step 3: Cross multiply
    61,693.31x = 85,150.82 × 40,145.08
  4. Step 4: Simplify right side
    61,693.31x = 3,418,385,854.49
  5. Step 5: Solve for x
    x = 3,418,385,854.49/61,693.31
  6. Step 6: Final answer
    x = 55,409.35

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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.