Home / 85,754.40-118,340.82-49,455.72

Finding the Fourth Proportional to 85,754.40, 118,340.82 and 49,455.72

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Solution

The fourth proportional to 85,754.40, 118,340.82 and 49,455.72 is: 68,248.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,754.40 : 118,340.82 = 49,455.72 : x
  2. Step 2: Convert to fraction form
    85,754.40/118,340.82 = 49,455.72/x
  3. Step 3: Cross multiply
    85,754.40x = 118,340.82 × 49,455.72
  4. Step 4: Simplify right side
    85,754.40x = 5,852,630,458.49
  5. Step 5: Solve for x
    x = 5,852,630,458.49/85,754.40
  6. Step 6: Final answer
    x = 68,248.75

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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.