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Finding the Fourth Proportional to 40,354.90, 60,542.08 and 12,652.90

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Solution

The fourth proportional to 40,354.90, 60,542.08 and 12,652.90 is: 18,982.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,354.90 : 60,542.08 = 12,652.90 : x
  2. Step 2: Convert to fraction form
    40,354.90/60,542.08 = 12,652.90/x
  3. Step 3: Cross multiply
    40,354.90x = 60,542.08 × 12,652.90
  4. Step 4: Simplify right side
    40,354.90x = 766,032,884.03
  5. Step 5: Solve for x
    x = 766,032,884.03/40,354.90
  6. Step 6: Final answer
    x = 18,982.40

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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.