Home / 43,139.50-64,709.25-13,955.50

Finding the Fourth Proportional to 43,139.50, 64,709.25 and 13,955.50

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Solution

The fourth proportional to 43,139.50, 64,709.25 and 13,955.50 is: 20,933.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,139.50 : 64,709.25 = 13,955.50 : x
  2. Step 2: Convert to fraction form
    43,139.50/64,709.25 = 13,955.50/x
  3. Step 3: Cross multiply
    43,139.50x = 64,709.25 × 13,955.50
  4. Step 4: Simplify right side
    43,139.50x = 903,049,938.38
  5. Step 5: Solve for x
    x = 903,049,938.38/43,139.50
  6. Step 6: Final answer
    x = 20,933.25

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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.