Home / 71,947.77-99,288.48-40,118.70

Finding the Fourth Proportional to 71,947.77, 99,288.48 and 40,118.70

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Solution

The fourth proportional to 71,947.77, 99,288.48 and 40,118.70 is: 55,364.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,947.77 : 99,288.48 = 40,118.70 : x
  2. Step 2: Convert to fraction form
    71,947.77/99,288.48 = 40,118.70/x
  3. Step 3: Cross multiply
    71,947.77x = 99,288.48 × 40,118.70
  4. Step 4: Simplify right side
    71,947.77x = 3,983,324,742.58
  5. Step 5: Solve for x
    x = 3,983,324,742.58/71,947.77
  6. Step 6: Final answer
    x = 55,364.12

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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.