Home / 55,961.90-77,225.54-30,467.78

Finding the Fourth Proportional to 55,961.90, 77,225.54 and 30,467.78

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Solution

The fourth proportional to 55,961.90, 77,225.54 and 30,467.78 is: 42,044.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,961.90 : 77,225.54 = 30,467.78 : x
  2. Step 2: Convert to fraction form
    55,961.90/77,225.54 = 30,467.78/x
  3. Step 3: Cross multiply
    55,961.90x = 77,225.54 × 30,467.78
  4. Step 4: Simplify right side
    55,961.90x = 2,352,890,763.10
  5. Step 5: Solve for x
    x = 2,352,890,763.10/55,961.90
  6. Step 6: Final answer
    x = 42,044.51

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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.