Home / 67,284.36-92,847.96-40,428

Finding the Fourth Proportional to 67,284.36, 92,847.96 and 40,428

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Solution

The fourth proportional to 67,284.36, 92,847.96 and 40,428 is: 55,787.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,284.36 : 92,847.96 = 40,428 : x
  2. Step 2: Convert to fraction form
    67,284.36/92,847.96 = 40,428/x
  3. Step 3: Cross multiply
    67,284.36x = 92,847.96 × 40,428
  4. Step 4: Simplify right side
    67,284.36x = 3,753,657,326.88
  5. Step 5: Solve for x
    x = 3,753,657,326.88/67,284.36
  6. Step 6: Final answer
    x = 55,787.96

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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.