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Finding the Fourth Proportional to 101,361.27, 139,876.37 and 56,041.17

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Solution

The fourth proportional to 101,361.27, 139,876.37 and 56,041.17 is: 77,335.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,361.27 : 139,876.37 = 56,041.17 : x
  2. Step 2: Convert to fraction form
    101,361.27/139,876.37 = 56,041.17/x
  3. Step 3: Cross multiply
    101,361.27x = 139,876.37 × 56,041.17
  4. Step 4: Simplify right side
    101,361.27x = 7,838,834,835.57
  5. Step 5: Solve for x
    x = 7,838,834,835.57/101,361.27
  6. Step 6: Final answer
    x = 77,335.60

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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.