Home / 57,743.40-86,615.10-28,180.20

Finding the Fourth Proportional to 57,743.40, 86,615.10 and 28,180.20

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Solution

The fourth proportional to 57,743.40, 86,615.10 and 28,180.20 is: 42,270.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,743.40 : 86,615.10 = 28,180.20 : x
  2. Step 2: Convert to fraction form
    57,743.40/86,615.10 = 28,180.20/x
  3. Step 3: Cross multiply
    57,743.40x = 86,615.10 × 28,180.20
  4. Step 4: Simplify right side
    57,743.40x = 2,440,830,841.02
  5. Step 5: Solve for x
    x = 2,440,830,841.02/57,743.40
  6. Step 6: Final answer
    x = 42,270.30

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Similar ratio
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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.