Home / 105,423.50-145,481.92-57,677.24

Finding the Fourth Proportional to 105,423.50, 145,481.92 and 57,677.24

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Solution

The fourth proportional to 105,423.50, 145,481.92 and 57,677.24 is: 79,593.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,423.50 : 145,481.92 = 57,677.24 : x
  2. Step 2: Convert to fraction form
    105,423.50/145,481.92 = 57,677.24/x
  3. Step 3: Cross multiply
    105,423.50x = 145,481.92 × 57,677.24
  4. Step 4: Simplify right side
    105,423.50x = 8,390,994,743.90
  5. Step 5: Solve for x
    x = 8,390,994,743.90/105,423.50
  6. Step 6: Final answer
    x = 79,593.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.