Home / 67,669.28-101,492.40-20,909.60

Finding the Fourth Proportional to 67,669.28, 101,492.40 and 20,909.60

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Solution

The fourth proportional to 67,669.28, 101,492.40 and 20,909.60 is: 31,360.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,669.28 : 101,492.40 = 20,909.60 : x
  2. Step 2: Convert to fraction form
    67,669.28/101,492.40 = 20,909.60/x
  3. Step 3: Cross multiply
    67,669.28x = 101,492.40 × 20,909.60
  4. Step 4: Simplify right side
    67,669.28x = 2,122,165,487.04
  5. Step 5: Solve for x
    x = 2,122,165,487.04/67,669.28
  6. Step 6: Final answer
    x = 31,360.84

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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.