Home / 85,577.42-118,057.07-55,372.49

Finding the Fourth Proportional to 85,577.42, 118,057.07 and 55,372.49

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Solution

The fourth proportional to 85,577.42, 118,057.07 and 55,372.49 is: 76,388.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,577.42 : 118,057.07 = 55,372.49 : x
  2. Step 2: Convert to fraction form
    85,577.42/118,057.07 = 55,372.49/x
  3. Step 3: Cross multiply
    85,577.42x = 118,057.07 × 55,372.49
  4. Step 4: Simplify right side
    85,577.42x = 6,537,113,431.09
  5. Step 5: Solve for x
    x = 6,537,113,431.09/85,577.42
  6. Step 6: Final answer
    x = 76,388.29

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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.