Home / 85,874.06-118,242.23-74,523.53

Finding the Fourth Proportional to 85,874.06, 118,242.23 and 74,523.53

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Solution

The fourth proportional to 85,874.06, 118,242.23 and 74,523.53 is: 102,613.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,874.06 : 118,242.23 = 74,523.53 : x
  2. Step 2: Convert to fraction form
    85,874.06/118,242.23 = 74,523.53/x
  3. Step 3: Cross multiply
    85,874.06x = 118,242.23 × 74,523.53
  4. Step 4: Simplify right side
    85,874.06x = 8,811,827,410.84
  5. Step 5: Solve for x
    x = 8,811,827,410.84/85,874.06
  6. Step 6: Final answer
    x = 102,613.38

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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.