Home / 81,486.35-112,450.81-45,676.36

Finding the Fourth Proportional to 81,486.35, 112,450.81 and 45,676.36

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Solution

The fourth proportional to 81,486.35, 112,450.81 and 45,676.36 is: 63,033.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,486.35 : 112,450.81 = 45,676.36 : x
  2. Step 2: Convert to fraction form
    81,486.35/112,450.81 = 45,676.36/x
  3. Step 3: Cross multiply
    81,486.35x = 112,450.81 × 45,676.36
  4. Step 4: Simplify right side
    81,486.35x = 5,136,344,209.42
  5. Step 5: Solve for x
    x = 5,136,344,209.42/81,486.35
  6. Step 6: Final answer
    x = 63,033.18

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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.