Home / 72,372.29-99,873.77-40,541.87

Finding the Fourth Proportional to 72,372.29, 99,873.77 and 40,541.87

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Solution

The fourth proportional to 72,372.29, 99,873.77 and 40,541.87 is: 55,947.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,372.29 : 99,873.77 = 40,541.87 : x
  2. Step 2: Convert to fraction form
    72,372.29/99,873.77 = 40,541.87/x
  3. Step 3: Cross multiply
    72,372.29x = 99,873.77 × 40,541.87
  4. Step 4: Simplify right side
    72,372.29x = 4,049,069,399.75
  5. Step 5: Solve for x
    x = 4,049,069,399.75/72,372.29
  6. Step 6: Final answer
    x = 55,947.79

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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.