Home / 55,342.20-82,916.10-45,427.80

Finding the Fourth Proportional to 55,342.20, 82,916.10 and 45,427.80

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Solution

The fourth proportional to 55,342.20, 82,916.10 and 45,427.80 is: 68,061.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,342.20 : 82,916.10 = 45,427.80 : x
  2. Step 2: Convert to fraction form
    55,342.20/82,916.10 = 45,427.80/x
  3. Step 3: Cross multiply
    55,342.20x = 82,916.10 × 45,427.80
  4. Step 4: Simplify right side
    55,342.20x = 3,766,696,007.58
  5. Step 5: Solve for x
    x = 3,766,696,007.58/55,342.20
  6. Step 6: Final answer
    x = 68,061.91

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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.