Home / 72,712.14-100,309.96-42,483.87

Finding the Fourth Proportional to 72,712.14, 100,309.96 and 42,483.87

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Solution

The fourth proportional to 72,712.14, 100,309.96 and 42,483.87 is: 58,608.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,712.14 : 100,309.96 = 42,483.87 : x
  2. Step 2: Convert to fraction form
    72,712.14/100,309.96 = 42,483.87/x
  3. Step 3: Cross multiply
    72,712.14x = 100,309.96 × 42,483.87
  4. Step 4: Simplify right side
    72,712.14x = 4,261,555,087.93
  5. Step 5: Solve for x
    x = 4,261,555,087.93/72,712.14
  6. Step 6: Final answer
    x = 58,608.58

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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.