Home / 72,664.68-100,277.92-43,985

Finding the Fourth Proportional to 72,664.68, 100,277.92 and 43,985

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Solution

The fourth proportional to 72,664.68, 100,277.92 and 43,985 is: 60,699.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,664.68 : 100,277.92 = 43,985 : x
  2. Step 2: Convert to fraction form
    72,664.68/100,277.92 = 43,985/x
  3. Step 3: Cross multiply
    72,664.68x = 100,277.92 × 43,985
  4. Step 4: Simplify right side
    72,664.68x = 4,410,724,311.20
  5. Step 5: Solve for x
    x = 4,410,724,311.20/72,664.68
  6. Step 6: Final answer
    x = 60,699.70

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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.