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Finding the Fourth Proportional to 94,338.78, 130,164.98 and 63,768.88

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Solution

The fourth proportional to 94,338.78, 130,164.98 and 63,768.88 is: 87,985.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,338.78 : 130,164.98 = 63,768.88 : x
  2. Step 2: Convert to fraction form
    94,338.78/130,164.98 = 63,768.88/x
  3. Step 3: Cross multiply
    94,338.78x = 130,164.98 × 63,768.88
  4. Step 4: Simplify right side
    94,338.78x = 8,300,474,989.82
  5. Step 5: Solve for x
    x = 8,300,474,989.82/94,338.78
  6. Step 6: Final answer
    x = 87,985.82

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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.