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Finding the Fourth Proportional to 60,645.40, 90,986.94 and 31,083.88

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Solution

The fourth proportional to 60,645.40, 90,986.94 and 31,083.88 is: 46,635.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,645.40 : 90,986.94 = 31,083.88 : x
  2. Step 2: Convert to fraction form
    60,645.40/90,986.94 = 31,083.88/x
  3. Step 3: Cross multiply
    60,645.40x = 90,986.94 × 31,083.88
  4. Step 4: Simplify right side
    60,645.40x = 2,828,227,124.53
  5. Step 5: Solve for x
    x = 2,828,227,124.53/60,645.40
  6. Step 6: Final answer
    x = 46,635.48

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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.