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Finding the Fourth Proportional to 81,609.93, 122,341.02 and 29,007.11

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Solution

The fourth proportional to 81,609.93, 122,341.02 and 29,007.11 is: 43,484.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,609.93 : 122,341.02 = 29,007.11 : x
  2. Step 2: Convert to fraction form
    81,609.93/122,341.02 = 29,007.11/x
  3. Step 3: Cross multiply
    81,609.93x = 122,341.02 × 29,007.11
  4. Step 4: Simplify right side
    81,609.93x = 3,548,758,812.95
  5. Step 5: Solve for x
    x = 3,548,758,812.95/81,609.93
  6. Step 6: Final answer
    x = 43,484.40

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1.5x scale

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.