Home / 85,385.42-117,907.71-53,175.35

Finding the Fourth Proportional to 85,385.42, 117,907.71 and 53,175.35

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Solution

The fourth proportional to 85,385.42, 117,907.71 and 53,175.35 is: 73,429.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,385.42 : 117,907.71 = 53,175.35 : x
  2. Step 2: Convert to fraction form
    85,385.42/117,907.71 = 53,175.35/x
  3. Step 3: Cross multiply
    85,385.42x = 117,907.71 × 53,175.35
  4. Step 4: Simplify right side
    85,385.42x = 6,269,783,157.41
  5. Step 5: Solve for x
    x = 6,269,783,157.41/85,385.42
  6. Step 6: Final answer
    x = 73,429.21

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1.5x scale

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.