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Finding the Fourth Proportional to 91,592.76, 137,436 and 43,615.68

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Solution

The fourth proportional to 91,592.76, 137,436 and 43,615.68 is: 65,445.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,592.76 : 137,436 = 43,615.68 : x
  2. Step 2: Convert to fraction form
    91,592.76/137,436 = 43,615.68/x
  3. Step 3: Cross multiply
    91,592.76x = 137,436 × 43,615.68
  4. Step 4: Simplify right side
    91,592.76x = 5,994,364,596.48
  5. Step 5: Solve for x
    x = 5,994,364,596.48/91,592.76
  6. Step 6: Final answer
    x = 65,445.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.