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Finding the Fourth Proportional to 100,040.29, 150,005.04 and 40,917.48

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Solution

The fourth proportional to 100,040.29, 150,005.04 and 40,917.48 is: 61,353.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,040.29 : 150,005.04 = 40,917.48 : x
  2. Step 2: Convert to fraction form
    100,040.29/150,005.04 = 40,917.48/x
  3. Step 3: Cross multiply
    100,040.29x = 150,005.04 × 40,917.48
  4. Step 4: Simplify right side
    100,040.29x = 6,137,828,045.11
  5. Step 5: Solve for x
    x = 6,137,828,045.11/100,040.29
  6. Step 6: Final answer
    x = 61,353.56

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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.