Home / 40,071.31-60,115.16-13,772.63

Finding the Fourth Proportional to 40,071.31, 60,115.16 and 13,772.63

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Solution

The fourth proportional to 40,071.31, 60,115.16 and 13,772.63 is: 20,661.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,071.31 : 60,115.16 = 13,772.63 : x
  2. Step 2: Convert to fraction form
    40,071.31/60,115.16 = 13,772.63/x
  3. Step 3: Cross multiply
    40,071.31x = 60,115.16 × 13,772.63
  4. Step 4: Simplify right side
    40,071.31x = 827,944,040.79
  5. Step 5: Solve for x
    x = 827,944,040.79/40,071.31
  6. Step 6: Final answer
    x = 20,661.77

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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.