Home / 85,311.90-117,730.62-47,588.58

Finding the Fourth Proportional to 85,311.90, 117,730.62 and 47,588.58

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Solution

The fourth proportional to 85,311.90, 117,730.62 and 47,588.58 is: 65,672.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,311.90 : 117,730.62 = 47,588.58 : x
  2. Step 2: Convert to fraction form
    85,311.90/117,730.62 = 47,588.58/x
  3. Step 3: Cross multiply
    85,311.90x = 117,730.62 × 47,588.58
  4. Step 4: Simplify right side
    85,311.90x = 5,602,633,028.32
  5. Step 5: Solve for x
    x = 5,602,633,028.32/85,311.90
  6. Step 6: Final answer
    x = 65,672.35

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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.