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Finding the Fourth Proportional to 101,377.10, 139,894.39 and 56,051.53

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Solution

The fourth proportional to 101,377.10, 139,894.39 and 56,051.53 is: 77,347.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,377.10 : 139,894.39 = 56,051.53 : x
  2. Step 2: Convert to fraction form
    101,377.10/139,894.39 = 56,051.53/x
  3. Step 3: Cross multiply
    101,377.10x = 139,894.39 × 56,051.53
  4. Step 4: Simplify right side
    101,377.10x = 7,841,294,318.25
  5. Step 5: Solve for x
    x = 7,841,294,318.25/101,377.10
  6. Step 6: Final answer
    x = 77,347.78

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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.