Home / 74,469.12-102,871.98-67,742.88

Finding the Fourth Proportional to 74,469.12, 102,871.98 and 67,742.88

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Solution

The fourth proportional to 74,469.12, 102,871.98 and 67,742.88 is: 93,580.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,469.12 : 102,871.98 = 67,742.88 : x
  2. Step 2: Convert to fraction form
    74,469.12/102,871.98 = 67,742.88/x
  3. Step 3: Cross multiply
    74,469.12x = 102,871.98 × 67,742.88
  4. Step 4: Simplify right side
    74,469.12x = 6,968,844,196.50
  5. Step 5: Solve for x
    x = 6,968,844,196.50/74,469.12
  6. Step 6: Final answer
    x = 93,580.32

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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.