Home / 71,117.28-106,682.04-18,526.80

Finding the Fourth Proportional to 71,117.28, 106,682.04 and 18,526.80

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Solution

The fourth proportional to 71,117.28, 106,682.04 and 18,526.80 is: 27,791.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,117.28 : 106,682.04 = 18,526.80 : x
  2. Step 2: Convert to fraction form
    71,117.28/106,682.04 = 18,526.80/x
  3. Step 3: Cross multiply
    71,117.28x = 106,682.04 × 18,526.80
  4. Step 4: Simplify right side
    71,117.28x = 1,976,476,818.67
  5. Step 5: Solve for x
    x = 1,976,476,818.67/71,117.28
  6. Step 6: Final answer
    x = 27,791.79

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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.