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Finding the Fourth Proportional to 101,323.38, 139,833.50 and 56,000.39

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Solution

The fourth proportional to 101,323.38, 139,833.50 and 56,000.39 is: 77,284.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,323.38 : 139,833.50 = 56,000.39 : x
  2. Step 2: Convert to fraction form
    101,323.38/139,833.50 = 56,000.39/x
  3. Step 3: Cross multiply
    101,323.38x = 139,833.50 × 56,000.39
  4. Step 4: Simplify right side
    101,323.38x = 7,830,729,555.90
  5. Step 5: Solve for x
    x = 7,830,729,555.90/101,323.38
  6. Step 6: Final answer
    x = 77,284.53

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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.