Home / 56,821.80-85,232.70-51,292.20

Finding the Fourth Proportional to 56,821.80, 85,232.70 and 51,292.20

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Solution

The fourth proportional to 56,821.80, 85,232.70 and 51,292.20 is: 76,938.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,821.80 : 85,232.70 = 51,292.20 : x
  2. Step 2: Convert to fraction form
    56,821.80/85,232.70 = 51,292.20/x
  3. Step 3: Cross multiply
    56,821.80x = 85,232.70 × 51,292.20
  4. Step 4: Simplify right side
    56,821.80x = 4,371,772,694.94
  5. Step 5: Solve for x
    x = 4,371,772,694.94/56,821.80
  6. Step 6: Final answer
    x = 76,938.30

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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.