Home / 53,321.04-80,063.76-45,108.96

Finding the Fourth Proportional to 53,321.04, 80,063.76 and 45,108.96

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Solution

The fourth proportional to 53,321.04, 80,063.76 and 45,108.96 is: 67,732.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,321.04 : 80,063.76 = 45,108.96 : x
  2. Step 2: Convert to fraction form
    53,321.04/80,063.76 = 45,108.96/x
  3. Step 3: Cross multiply
    53,321.04x = 80,063.76 × 45,108.96
  4. Step 4: Simplify right side
    53,321.04x = 3,611,592,947.29
  5. Step 5: Solve for x
    x = 3,611,592,947.29/53,321.04
  6. Step 6: Final answer
    x = 67,732.98

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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.