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Finding the Fourth Proportional to 74,103.48, 102,253.28 and 42,270.48

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Solution

The fourth proportional to 74,103.48, 102,253.28 and 42,270.48 is: 58,327.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,103.48 : 102,253.28 = 42,270.48 : x
  2. Step 2: Convert to fraction form
    74,103.48/102,253.28 = 42,270.48/x
  3. Step 3: Cross multiply
    74,103.48x = 102,253.28 × 42,270.48
  4. Step 4: Simplify right side
    74,103.48x = 4,322,295,227.17
  5. Step 5: Solve for x
    x = 4,322,295,227.17/74,103.48
  6. Step 6: Final answer
    x = 58,327.83

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1.5x scale

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.