Home / 55,043.46-75,958.44-31,172.40

Finding the Fourth Proportional to 55,043.46, 75,958.44 and 31,172.40

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Solution

The fourth proportional to 55,043.46, 75,958.44 and 31,172.40 is: 43,017.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,043.46 : 75,958.44 = 31,172.40 : x
  2. Step 2: Convert to fraction form
    55,043.46/75,958.44 = 31,172.40/x
  3. Step 3: Cross multiply
    55,043.46x = 75,958.44 × 31,172.40
  4. Step 4: Simplify right side
    55,043.46x = 2,367,806,875.06
  5. Step 5: Solve for x
    x = 2,367,806,875.06/55,043.46
  6. Step 6: Final answer
    x = 43,017.04

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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.