Home / 55,917.30-77,165.28-30,424.44

Finding the Fourth Proportional to 55,917.30, 77,165.28 and 30,424.44

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Solution

The fourth proportional to 55,917.30, 77,165.28 and 30,424.44 is: 41,985.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,917.30 : 77,165.28 = 30,424.44 : x
  2. Step 2: Convert to fraction form
    55,917.30/77,165.28 = 30,424.44/x
  3. Step 3: Cross multiply
    55,917.30x = 77,165.28 × 30,424.44
  4. Step 4: Simplify right side
    55,917.30x = 2,347,710,431.44
  5. Step 5: Solve for x
    x = 2,347,710,431.44/55,917.30
  6. Step 6: Final answer
    x = 41,985.40

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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.