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Finding the Fourth Proportional to 40,352.60, 60,464.10 and 38,019.80

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Solution

The fourth proportional to 40,352.60, 60,464.10 and 38,019.80 is: 56,968.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,352.60 : 60,464.10 = 38,019.80 : x
  2. Step 2: Convert to fraction form
    40,352.60/60,464.10 = 38,019.80/x
  3. Step 3: Cross multiply
    40,352.60x = 60,464.10 × 38,019.80
  4. Step 4: Simplify right side
    40,352.60x = 2,298,832,989.18
  5. Step 5: Solve for x
    x = 2,298,832,989.18/40,352.60
  6. Step 6: Final answer
    x = 56,968.65

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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.