Home / 83,619.80-125,429.70-55,577.60

Finding the Fourth Proportional to 83,619.80, 125,429.70 and 55,577.60

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Solution

The fourth proportional to 83,619.80, 125,429.70 and 55,577.60 is: 83,366.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,619.80 : 125,429.70 = 55,577.60 : x
  2. Step 2: Convert to fraction form
    83,619.80/125,429.70 = 55,577.60/x
  3. Step 3: Cross multiply
    83,619.80x = 125,429.70 × 55,577.60
  4. Step 4: Simplify right side
    83,619.80x = 6,971,081,694.72
  5. Step 5: Solve for x
    x = 6,971,081,694.72/83,619.80
  6. Step 6: Final answer
    x = 83,366.40

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1.5x scale

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.