Home / 67,069.12-92,555.12-38,388.64

Finding the Fourth Proportional to 67,069.12, 92,555.12 and 38,388.64

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Solution

The fourth proportional to 67,069.12, 92,555.12 and 38,388.64 is: 52,976.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,069.12 : 92,555.12 = 38,388.64 : x
  2. Step 2: Convert to fraction form
    67,069.12/92,555.12 = 38,388.64/x
  3. Step 3: Cross multiply
    67,069.12x = 92,555.12 × 38,388.64
  4. Step 4: Simplify right side
    67,069.12x = 3,553,065,181.84
  5. Step 5: Solve for x
    x = 3,553,065,181.84/67,069.12
  6. Step 6: Final answer
    x = 52,976.17

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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.