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Finding the Fourth Proportional to 108,587.80, 162,824.10 and 38,469.40

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Solution

The fourth proportional to 108,587.80, 162,824.10 and 38,469.40 is: 57,683.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,587.80 : 162,824.10 = 38,469.40 : x
  2. Step 2: Convert to fraction form
    108,587.80/162,824.10 = 38,469.40/x
  3. Step 3: Cross multiply
    108,587.80x = 162,824.10 × 38,469.40
  4. Step 4: Simplify right side
    108,587.80x = 6,263,745,432.54
  5. Step 5: Solve for x
    x = 6,263,745,432.54/108,587.80
  6. Step 6: Final answer
    x = 57,683.69

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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.