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Finding the Fourth Proportional to 61,352.37, 91,962.81 and 31,740.39

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Solution

The fourth proportional to 61,352.37, 91,962.81 and 31,740.39 is: 47,576.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,352.37 : 91,962.81 = 31,740.39 : x
  2. Step 2: Convert to fraction form
    61,352.37/91,962.81 = 31,740.39/x
  3. Step 3: Cross multiply
    61,352.37x = 91,962.81 × 31,740.39
  4. Step 4: Simplify right side
    61,352.37x = 2,918,935,454.90
  5. Step 5: Solve for x
    x = 2,918,935,454.90/61,352.37
  6. Step 6: Final answer
    x = 47,576.57

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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.