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Finding the Fourth Proportional to 101,381.01, 139,893.58 and 56,052.87

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Solution

The fourth proportional to 101,381.01, 139,893.58 and 56,052.87 is: 77,346.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,381.01 : 139,893.58 = 56,052.87 : x
  2. Step 2: Convert to fraction form
    101,381.01/139,893.58 = 56,052.87/x
  3. Step 3: Cross multiply
    101,381.01x = 139,893.58 × 56,052.87
  4. Step 4: Simplify right side
    101,381.01x = 7,841,436,653.57
  5. Step 5: Solve for x
    x = 7,841,436,653.57/101,381.01
  6. Step 6: Final answer
    x = 77,346.21

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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.