Home / 40,136.15-60,207.11-13,840.51

Finding the Fourth Proportional to 40,136.15, 60,207.11 and 13,840.51

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Solution

The fourth proportional to 40,136.15, 60,207.11 and 13,840.51 is: 20,761.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,136.15 : 60,207.11 = 13,840.51 : x
  2. Step 2: Convert to fraction form
    40,136.15/60,207.11 = 13,840.51/x
  3. Step 3: Cross multiply
    40,136.15x = 60,207.11 × 13,840.51
  4. Step 4: Simplify right side
    40,136.15x = 833,297,038.82
  5. Step 5: Solve for x
    x = 833,297,038.82/40,136.15
  6. Step 6: Final answer
    x = 20,761.76

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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.