Home / 68,056.94-102,077.31-18,140.78

Finding the Fourth Proportional to 68,056.94, 102,077.31 and 18,140.78

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Solution

The fourth proportional to 68,056.94, 102,077.31 and 18,140.78 is: 27,209.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,056.94 : 102,077.31 = 18,140.78 : x
  2. Step 2: Convert to fraction form
    68,056.94/102,077.31 = 18,140.78/x
  3. Step 3: Cross multiply
    68,056.94x = 102,077.31 × 18,140.78
  4. Step 4: Simplify right side
    68,056.94x = 1,851,762,023.70
  5. Step 5: Solve for x
    x = 1,851,762,023.70/68,056.94
  6. Step 6: Final answer
    x = 27,209.01

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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.