Home / 85,912.46-118,559.10-48,186.74

Finding the Fourth Proportional to 85,912.46, 118,559.10 and 48,186.74

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Solution

The fourth proportional to 85,912.46, 118,559.10 and 48,186.74 is: 66,497.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,912.46 : 118,559.10 = 48,186.74 : x
  2. Step 2: Convert to fraction form
    85,912.46/118,559.10 = 48,186.74/x
  3. Step 3: Cross multiply
    85,912.46x = 118,559.10 × 48,186.74
  4. Step 4: Simplify right side
    85,912.46x = 5,712,976,526.33
  5. Step 5: Solve for x
    x = 5,712,976,526.33/85,912.46
  6. Step 6: Final answer
    x = 66,497.65

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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.