Home / 81,436.46-112,382.24-45,140.22

Finding the Fourth Proportional to 81,436.46, 112,382.24 and 45,140.22

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Solution

The fourth proportional to 81,436.46, 112,382.24 and 45,140.22 is: 62,293.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,436.46 : 112,382.24 = 45,140.22 : x
  2. Step 2: Convert to fraction form
    81,436.46/112,382.24 = 45,140.22/x
  3. Step 3: Cross multiply
    81,436.46x = 112,382.24 × 45,140.22
  4. Step 4: Simplify right side
    81,436.46x = 5,072,958,811.99
  5. Step 5: Solve for x
    x = 5,072,958,811.99/81,436.46
  6. Step 6: Final answer
    x = 62,293.46

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1.5x scale

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.