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Finding the Fourth Proportional to 92,881.82, 128,216.14 and 62,708.02

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Solution

The fourth proportional to 92,881.82, 128,216.14 and 62,708.02 is: 86,563.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,881.82 : 128,216.14 = 62,708.02 : x
  2. Step 2: Convert to fraction form
    92,881.82/128,216.14 = 62,708.02/x
  3. Step 3: Cross multiply
    92,881.82x = 128,216.14 × 62,708.02
  4. Step 4: Simplify right side
    92,881.82x = 8,040,180,271.44
  5. Step 5: Solve for x
    x = 8,040,180,271.44/92,881.82
  6. Step 6: Final answer
    x = 86,563.55

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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.