Home / 81,193.75-112,039.68-45,382.94

Finding the Fourth Proportional to 81,193.75, 112,039.68 and 45,382.94

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Solution

The fourth proportional to 81,193.75, 112,039.68 and 45,382.94 is: 62,624.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,193.75 : 112,039.68 = 45,382.94 : x
  2. Step 2: Convert to fraction form
    81,193.75/112,039.68 = 45,382.94/x
  3. Step 3: Cross multiply
    81,193.75x = 112,039.68 × 45,382.94
  4. Step 4: Simplify right side
    81,193.75x = 5,084,690,075.06
  5. Step 5: Solve for x
    x = 5,084,690,075.06/81,193.75
  6. Step 6: Final answer
    x = 62,624.16

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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.