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Finding the Fourth Proportional to 40,424.60, 60,636.90 and 34,009.40

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Solution

The fourth proportional to 40,424.60, 60,636.90 and 34,009.40 is: 51,014.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,424.60 : 60,636.90 = 34,009.40 : x
  2. Step 2: Convert to fraction form
    40,424.60/60,636.90 = 34,009.40/x
  3. Step 3: Cross multiply
    40,424.60x = 60,636.90 × 34,009.40
  4. Step 4: Simplify right side
    40,424.60x = 2,062,224,586.86
  5. Step 5: Solve for x
    x = 2,062,224,586.86/40,424.60
  6. Step 6: Final answer
    x = 51,014.10

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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.