Home / 67,739.64-93,474.84-40,872.36

Finding the Fourth Proportional to 67,739.64, 93,474.84 and 40,872.36

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Solution

The fourth proportional to 67,739.64, 93,474.84 and 40,872.36 is: 56,400.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,739.64 : 93,474.84 = 40,872.36 : x
  2. Step 2: Convert to fraction form
    67,739.64/93,474.84 = 40,872.36/x
  3. Step 3: Cross multiply
    67,739.64x = 93,474.84 × 40,872.36
  4. Step 4: Simplify right side
    67,739.64x = 3,820,537,311.42
  5. Step 5: Solve for x
    x = 3,820,537,311.42/67,739.64
  6. Step 6: Final answer
    x = 56,400.32

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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.