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Finding the Fourth Proportional to 84,407.64, 126,673.71 and 40,034.53

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Solution

The fourth proportional to 84,407.64, 126,673.71 and 40,034.53 is: 60,081.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,407.64 : 126,673.71 = 40,034.53 : x
  2. Step 2: Convert to fraction form
    84,407.64/126,673.71 = 40,034.53/x
  3. Step 3: Cross multiply
    84,407.64x = 126,673.71 × 40,034.53
  4. Step 4: Simplify right side
    84,407.64x = 5,071,322,443.21
  5. Step 5: Solve for x
    x = 5,071,322,443.21/84,407.64
  6. Step 6: Final answer
    x = 60,081.32

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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.