Home / 55,038.52-75,954.18-31,165.12

Finding the Fourth Proportional to 55,038.52, 75,954.18 and 31,165.12

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Solution

The fourth proportional to 55,038.52, 75,954.18 and 31,165.12 is: 43,008.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,038.52 : 75,954.18 = 31,165.12 : x
  2. Step 2: Convert to fraction form
    55,038.52/75,954.18 = 31,165.12/x
  3. Step 3: Cross multiply
    55,038.52x = 75,954.18 × 31,165.12
  4. Step 4: Simplify right side
    55,038.52x = 2,367,121,134.20
  5. Step 5: Solve for x
    x = 2,367,121,134.20/55,038.52
  6. Step 6: Final answer
    x = 43,008.44

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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.