Home / 81,053.46-121,622.99-57,513.11

Finding the Fourth Proportional to 81,053.46, 121,622.99 and 57,513.11

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Solution

The fourth proportional to 81,053.46, 121,622.99 and 57,513.11 is: 86,300.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,053.46 : 121,622.99 = 57,513.11 : x
  2. Step 2: Convert to fraction form
    81,053.46/121,622.99 = 57,513.11/x
  3. Step 3: Cross multiply
    81,053.46x = 121,622.99 × 57,513.11
  4. Step 4: Simplify right side
    81,053.46x = 6,994,915,506.72
  5. Step 5: Solve for x
    x = 6,994,915,506.72/81,053.46
  6. Step 6: Final answer
    x = 86,300.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.