Home / 83,611.47-125,363.84-55,115.51

Finding the Fourth Proportional to 83,611.47, 125,363.84 and 55,115.51

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Solution

The fourth proportional to 83,611.47, 125,363.84 and 55,115.51 is: 82,638.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,611.47 : 125,363.84 = 55,115.51 : x
  2. Step 2: Convert to fraction form
    83,611.47/125,363.84 = 55,115.51/x
  3. Step 3: Cross multiply
    83,611.47x = 125,363.84 × 55,115.51
  4. Step 4: Simplify right side
    83,611.47x = 6,909,491,074.76
  5. Step 5: Solve for x
    x = 6,909,491,074.76/83,611.47
  6. Step 6: Final answer
    x = 82,638.07

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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.