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Finding the Fourth Proportional to 101,775.22, 140,448.87 and 56,453.29

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Solution

The fourth proportional to 101,775.22, 140,448.87 and 56,453.29 is: 77,905.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,775.22 : 140,448.87 = 56,453.29 : x
  2. Step 2: Convert to fraction form
    101,775.22/140,448.87 = 56,453.29/x
  3. Step 3: Cross multiply
    101,775.22x = 140,448.87 × 56,453.29
  4. Step 4: Simplify right side
    101,775.22x = 7,928,800,437.16
  5. Step 5: Solve for x
    x = 7,928,800,437.16/101,775.22
  6. Step 6: Final answer
    x = 77,905.02

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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.