Home / 67,089-92,559.22-40,240.20

Finding the Fourth Proportional to 67,089, 92,559.22 and 40,240.20

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Solution

The fourth proportional to 67,089, 92,559.22 and 40,240.20 is: 55,517.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,089 : 92,559.22 = 40,240.20 : x
  2. Step 2: Convert to fraction form
    67,089/92,559.22 = 40,240.20/x
  3. Step 3: Cross multiply
    67,089x = 92,559.22 × 40,240.20
  4. Step 4: Simplify right side
    67,089x = 3,724,601,524.64
  5. Step 5: Solve for x
    x = 3,724,601,524.64/67,089
  6. Step 6: Final answer
    x = 55,517.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.