Home / 85,669.91-118,278.14-55,055.42

Finding the Fourth Proportional to 85,669.91, 118,278.14 and 55,055.42

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Solution

The fourth proportional to 85,669.91, 118,278.14 and 55,055.42 is: 76,010.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,669.91 : 118,278.14 = 55,055.42 : x
  2. Step 2: Convert to fraction form
    85,669.91/118,278.14 = 55,055.42/x
  3. Step 3: Cross multiply
    85,669.91x = 118,278.14 × 55,055.42
  4. Step 4: Simplify right side
    85,669.91x = 6,511,851,807.85
  5. Step 5: Solve for x
    x = 6,511,851,807.85/85,669.91
  6. Step 6: Final answer
    x = 76,010.96

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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.