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Finding the Fourth Proportional to 56,954.40, 85,201.20 and 51,424.80

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Solution

The fourth proportional to 56,954.40, 85,201.20 and 51,424.80 is: 76,929.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,954.40 : 85,201.20 = 51,424.80 : x
  2. Step 2: Convert to fraction form
    56,954.40/85,201.20 = 51,424.80/x
  3. Step 3: Cross multiply
    56,954.40x = 85,201.20 × 51,424.80
  4. Step 4: Simplify right side
    56,954.40x = 4,381,454,669.76
  5. Step 5: Solve for x
    x = 4,381,454,669.76/56,954.40
  6. Step 6: Final answer
    x = 76,929.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.