Home / 52,405.36-72,303.18-31,991.80

Finding the Fourth Proportional to 52,405.36, 72,303.18 and 31,991.80

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Solution

The fourth proportional to 52,405.36, 72,303.18 and 31,991.80 is: 44,138.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,405.36 : 72,303.18 = 31,991.80 : x
  2. Step 2: Convert to fraction form
    52,405.36/72,303.18 = 31,991.80/x
  3. Step 3: Cross multiply
    52,405.36x = 72,303.18 × 31,991.80
  4. Step 4: Simplify right side
    52,405.36x = 2,313,108,873.92
  5. Step 5: Solve for x
    x = 2,313,108,873.92/52,405.36
  6. Step 6: Final answer
    x = 44,138.78

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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.