Home / 72,989.10-100,730.79-41,160.96

Finding the Fourth Proportional to 72,989.10, 100,730.79 and 41,160.96

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Solution

The fourth proportional to 72,989.10, 100,730.79 and 41,160.96 is: 56,805.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,989.10 : 100,730.79 = 41,160.96 : x
  2. Step 2: Convert to fraction form
    72,989.10/100,730.79 = 41,160.96/x
  3. Step 3: Cross multiply
    72,989.10x = 100,730.79 × 41,160.96
  4. Step 4: Simplify right side
    72,989.10x = 4,146,176,017.96
  5. Step 5: Solve for x
    x = 4,146,176,017.96/72,989.10
  6. Step 6: Final answer
    x = 56,805.41

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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.