Home / 85,935.30-118,633.05-54,153.06

Finding the Fourth Proportional to 85,935.30, 118,633.05 and 54,153.06

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Solution

The fourth proportional to 85,935.30, 118,633.05 and 54,153.06 is: 74,757.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,935.30 : 118,633.05 = 54,153.06 : x
  2. Step 2: Convert to fraction form
    85,935.30/118,633.05 = 54,153.06/x
  3. Step 3: Cross multiply
    85,935.30x = 118,633.05 × 54,153.06
  4. Step 4: Simplify right side
    85,935.30x = 6,424,342,674.63
  5. Step 5: Solve for x
    x = 6,424,342,674.63/85,935.30
  6. Step 6: Final answer
    x = 74,757.90

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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.