Home / 72,583.14-100,162.15-40,753.38

Finding the Fourth Proportional to 72,583.14, 100,162.15 and 40,753.38

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Solution

The fourth proportional to 72,583.14, 100,162.15 and 40,753.38 is: 56,238.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,583.14 : 100,162.15 = 40,753.38 : x
  2. Step 2: Convert to fraction form
    72,583.14/100,162.15 = 40,753.38/x
  3. Step 3: Cross multiply
    72,583.14x = 100,162.15 × 40,753.38
  4. Step 4: Simplify right side
    72,583.14x = 4,081,946,160.57
  5. Step 5: Solve for x
    x = 4,081,946,160.57/72,583.14
  6. Step 6: Final answer
    x = 56,238.21

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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.