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Finding the Fourth Proportional to 101,371.87, 139,903.35 and 56,053.27

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Solution

The fourth proportional to 101,371.87, 139,903.35 and 56,053.27 is: 77,359.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,371.87 : 139,903.35 = 56,053.27 : x
  2. Step 2: Convert to fraction form
    101,371.87/139,903.35 = 56,053.27/x
  3. Step 3: Cross multiply
    101,371.87x = 139,903.35 × 56,053.27
  4. Step 4: Simplify right side
    101,371.87x = 7,842,040,251.45
  5. Step 5: Solve for x
    x = 7,842,040,251.45/101,371.87
  6. Step 6: Final answer
    x = 77,359.14

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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.