Home / 52,879.20-79,318.80-40,437.60

Finding the Fourth Proportional to 52,879.20, 79,318.80 and 40,437.60

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Solution

The fourth proportional to 52,879.20, 79,318.80 and 40,437.60 is: 60,656.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,879.20 : 79,318.80 = 40,437.60 : x
  2. Step 2: Convert to fraction form
    52,879.20/79,318.80 = 40,437.60/x
  3. Step 3: Cross multiply
    52,879.20x = 79,318.80 × 40,437.60
  4. Step 4: Simplify right side
    52,879.20x = 3,207,461,906.88
  5. Step 5: Solve for x
    x = 3,207,461,906.88/52,879.20
  6. Step 6: Final answer
    x = 60,656.40

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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.