Home / 43,135.90-64,681.97-19,742.30

Finding the Fourth Proportional to 43,135.90, 64,681.97 and 19,742.30

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Solution

The fourth proportional to 43,135.90, 64,681.97 and 19,742.30 is: 29,603.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,135.90 : 64,681.97 = 19,742.30 : x
  2. Step 2: Convert to fraction form
    43,135.90/64,681.97 = 19,742.30/x
  3. Step 3: Cross multiply
    43,135.90x = 64,681.97 × 19,742.30
  4. Step 4: Simplify right side
    43,135.90x = 1,276,970,856.33
  5. Step 5: Solve for x
    x = 1,276,970,856.33/43,135.90
  6. Step 6: Final answer
    x = 29,603.44

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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.