Home / 40,139.96-60,192.48-21,415.82

Finding the Fourth Proportional to 40,139.96, 60,192.48 and 21,415.82

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Solution

The fourth proportional to 40,139.96, 60,192.48 and 21,415.82 is: 32,114.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,139.96 : 60,192.48 = 21,415.82 : x
  2. Step 2: Convert to fraction form
    40,139.96/60,192.48 = 21,415.82/x
  3. Step 3: Cross multiply
    40,139.96x = 60,192.48 × 21,415.82
  4. Step 4: Simplify right side
    40,139.96x = 1,289,071,317.03
  5. Step 5: Solve for x
    x = 1,289,071,317.03/40,139.96
  6. Step 6: Final answer
    x = 32,114.41

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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.