Home / 42,761.22-64,140.39-19,371.30

Finding the Fourth Proportional to 42,761.22, 64,140.39 and 19,371.30

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Solution

The fourth proportional to 42,761.22, 64,140.39 and 19,371.30 is: 29,056.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,761.22 : 64,140.39 = 19,371.30 : x
  2. Step 2: Convert to fraction form
    42,761.22/64,140.39 = 19,371.30/x
  3. Step 3: Cross multiply
    42,761.22x = 64,140.39 × 19,371.30
  4. Step 4: Simplify right side
    42,761.22x = 1,242,482,736.81
  5. Step 5: Solve for x
    x = 1,242,482,736.81/42,761.22
  6. Step 6: Final answer
    x = 29,056.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.