Home / 85,871.04-118,477.82-55,657.64

Finding the Fourth Proportional to 85,871.04, 118,477.82 and 55,657.64

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Solution

The fourth proportional to 85,871.04, 118,477.82 and 55,657.64 is: 76,791.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,871.04 : 118,477.82 = 55,657.64 : x
  2. Step 2: Convert to fraction form
    85,871.04/118,477.82 = 55,657.64/x
  3. Step 3: Cross multiply
    85,871.04x = 118,477.82 × 55,657.64
  4. Step 4: Simplify right side
    85,871.04x = 6,594,195,853.54
  5. Step 5: Solve for x
    x = 6,594,195,853.54/85,871.04
  6. Step 6: Final answer
    x = 76,791.85

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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.