Home / 81,253.19-112,139.98-45,450.63

Finding the Fourth Proportional to 81,253.19, 112,139.98 and 45,450.63

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Solution

The fourth proportional to 81,253.19, 112,139.98 and 45,450.63 is: 62,727.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,253.19 : 112,139.98 = 45,450.63 : x
  2. Step 2: Convert to fraction form
    81,253.19/112,139.98 = 45,450.63/x
  3. Step 3: Cross multiply
    81,253.19x = 112,139.98 × 45,450.63
  4. Step 4: Simplify right side
    81,253.19x = 5,096,832,625.56
  5. Step 5: Solve for x
    x = 5,096,832,625.56/81,253.19
  6. Step 6: Final answer
    x = 62,727.78

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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.