Home / 55,857.30-77,083.43-30,363.72

Finding the Fourth Proportional to 55,857.30, 77,083.43 and 30,363.72

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Solution

The fourth proportional to 55,857.30, 77,083.43 and 30,363.72 is: 41,902.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,857.30 : 77,083.43 = 30,363.72 : x
  2. Step 2: Convert to fraction form
    55,857.30/77,083.43 = 30,363.72/x
  3. Step 3: Cross multiply
    55,857.30x = 77,083.43 × 30,363.72
  4. Step 4: Simplify right side
    55,857.30x = 2,340,539,533.34
  5. Step 5: Solve for x
    x = 2,340,539,533.34/55,857.30
  6. Step 6: Final answer
    x = 41,902.12

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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.