Home / 85,103.64-117,435.96-47,377.08

Finding the Fourth Proportional to 85,103.64, 117,435.96 and 47,377.08

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Solution

The fourth proportional to 85,103.64, 117,435.96 and 47,377.08 is: 65,376.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,103.64 : 117,435.96 = 47,377.08 : x
  2. Step 2: Convert to fraction form
    85,103.64/117,435.96 = 47,377.08/x
  3. Step 3: Cross multiply
    85,103.64x = 117,435.96 × 47,377.08
  4. Step 4: Simplify right side
    85,103.64x = 5,563,772,871.80
  5. Step 5: Solve for x
    x = 5,563,772,871.80/85,103.64
  6. Step 6: Final answer
    x = 65,376.44

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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.