Home / 40,720.86-61,102.20-19,397.73

Finding the Fourth Proportional to 40,720.86, 61,102.20 and 19,397.73

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Solution

The fourth proportional to 40,720.86, 61,102.20 and 19,397.73 is: 29,106.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,720.86 : 61,102.20 = 19,397.73 : x
  2. Step 2: Convert to fraction form
    40,720.86/61,102.20 = 19,397.73/x
  3. Step 3: Cross multiply
    40,720.86x = 61,102.20 × 19,397.73
  4. Step 4: Simplify right side
    40,720.86x = 1,185,243,827.07
  5. Step 5: Solve for x
    x = 1,185,243,827.07/40,720.86
  6. Step 6: Final answer
    x = 29,106.55

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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.