Home / 51,988.21-71,743.90-28,115.05

Finding the Fourth Proportional to 51,988.21, 71,743.90 and 28,115.05

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Solution

The fourth proportional to 51,988.21, 71,743.90 and 28,115.05 is: 38,798.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,988.21 : 71,743.90 = 28,115.05 : x
  2. Step 2: Convert to fraction form
    51,988.21/71,743.90 = 28,115.05/x
  3. Step 3: Cross multiply
    51,988.21x = 71,743.90 × 28,115.05
  4. Step 4: Simplify right side
    51,988.21x = 2,017,083,335.70
  5. Step 5: Solve for x
    x = 2,017,083,335.70/51,988.21
  6. Step 6: Final answer
    x = 38,798.86

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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.