Home / 81,583.20-112,579.20-45,770.40

Finding the Fourth Proportional to 81,583.20, 112,579.20 and 45,770.40

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Solution

The fourth proportional to 81,583.20, 112,579.20 and 45,770.40 is: 63,160.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,583.20 : 112,579.20 = 45,770.40 : x
  2. Step 2: Convert to fraction form
    81,583.20/112,579.20 = 45,770.40/x
  3. Step 3: Cross multiply
    81,583.20x = 112,579.20 × 45,770.40
  4. Step 4: Simplify right side
    81,583.20x = 5,152,795,015.68
  5. Step 5: Solve for x
    x = 5,152,795,015.68/81,583.20
  6. Step 6: Final answer
    x = 63,160.00

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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.