Home / 55,281.27-76,287.52-31,407.43

Finding the Fourth Proportional to 55,281.27, 76,287.52 and 31,407.43

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Solution

The fourth proportional to 55,281.27, 76,287.52 and 31,407.43 is: 43,341.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,281.27 : 76,287.52 = 31,407.43 : x
  2. Step 2: Convert to fraction form
    55,281.27/76,287.52 = 31,407.43/x
  3. Step 3: Cross multiply
    55,281.27x = 76,287.52 × 31,407.43
  4. Step 4: Simplify right side
    55,281.27x = 2,395,994,787.24
  5. Step 5: Solve for x
    x = 2,395,994,787.24/55,281.27
  6. Step 6: Final answer
    x = 43,341.90

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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.