Home / 72,338.78-99,836.04-40,501.52

Finding the Fourth Proportional to 72,338.78, 99,836.04 and 40,501.52

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Solution

The fourth proportional to 72,338.78, 99,836.04 and 40,501.52 is: 55,896.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,338.78 : 99,836.04 = 40,501.52 : x
  2. Step 2: Convert to fraction form
    72,338.78/99,836.04 = 40,501.52/x
  3. Step 3: Cross multiply
    72,338.78x = 99,836.04 × 40,501.52
  4. Step 4: Simplify right side
    72,338.78x = 4,043,510,871.60
  5. Step 5: Solve for x
    x = 4,043,510,871.60/72,338.78
  6. Step 6: Final answer
    x = 55,896.87

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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.