Home / 84,205.80-116,143.20-57,300.84

Finding the Fourth Proportional to 84,205.80, 116,143.20 and 57,300.84

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Solution

The fourth proportional to 84,205.80, 116,143.20 and 57,300.84 is: 79,033.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,205.80 : 116,143.20 = 57,300.84 : x
  2. Step 2: Convert to fraction form
    84,205.80/116,143.20 = 57,300.84/x
  3. Step 3: Cross multiply
    84,205.80x = 116,143.20 × 57,300.84
  4. Step 4: Simplify right side
    84,205.80x = 6,655,102,920.29
  5. Step 5: Solve for x
    x = 6,655,102,920.29/84,205.80
  6. Step 6: Final answer
    x = 79,033.78

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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.