Home / 51,521.28-71,100.27-28,860.09

Finding the Fourth Proportional to 51,521.28, 71,100.27 and 28,860.09

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Solution

The fourth proportional to 51,521.28, 71,100.27 and 28,860.09 is: 39,827.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,521.28 : 71,100.27 = 28,860.09 : x
  2. Step 2: Convert to fraction form
    51,521.28/71,100.27 = 28,860.09/x
  3. Step 3: Cross multiply
    51,521.28x = 71,100.27 × 28,860.09
  4. Step 4: Simplify right side
    51,521.28x = 2,051,960,191.22
  5. Step 5: Solve for x
    x = 2,051,960,191.22/51,521.28
  6. Step 6: Final answer
    x = 39,827.43

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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.