Home / 45,119.82-67,686.30-13,957.50

Finding the Fourth Proportional to 45,119.82, 67,686.30 and 13,957.50

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Solution

The fourth proportional to 45,119.82, 67,686.30 and 13,957.50 is: 20,938.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,119.82 : 67,686.30 = 13,957.50 : x
  2. Step 2: Convert to fraction form
    45,119.82/67,686.30 = 13,957.50/x
  3. Step 3: Cross multiply
    45,119.82x = 67,686.30 × 13,957.50
  4. Step 4: Simplify right side
    45,119.82x = 944,731,532.25
  5. Step 5: Solve for x
    x = 944,731,532.25/45,119.82
  6. Step 6: Final answer
    x = 20,938.28

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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.