Home / 83,318.55-124,990.78-27,145.58

Finding the Fourth Proportional to 83,318.55, 124,990.78 and 27,145.58

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Solution

The fourth proportional to 83,318.55, 124,990.78 and 27,145.58 is: 40,722.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,318.55 : 124,990.78 = 27,145.58 : x
  2. Step 2: Convert to fraction form
    83,318.55/124,990.78 = 27,145.58/x
  3. Step 3: Cross multiply
    83,318.55x = 124,990.78 × 27,145.58
  4. Step 4: Simplify right side
    83,318.55x = 3,392,946,457.07
  5. Step 5: Solve for x
    x = 3,392,946,457.07/83,318.55
  6. Step 6: Final answer
    x = 40,722.58

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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.