Home / 45,604.76-68,428.80-31,586.36

Finding the Fourth Proportional to 45,604.76, 68,428.80 and 31,586.36

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Solution

The fourth proportional to 45,604.76, 68,428.80 and 31,586.36 is: 47,394.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,604.76 : 68,428.80 = 31,586.36 : x
  2. Step 2: Convert to fraction form
    45,604.76/68,428.80 = 31,586.36/x
  3. Step 3: Cross multiply
    45,604.76x = 68,428.80 × 31,586.36
  4. Step 4: Simplify right side
    45,604.76x = 2,161,416,711.17
  5. Step 5: Solve for x
    x = 2,161,416,711.17/45,604.76
  6. Step 6: Final answer
    x = 47,394.54

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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.