Home / 66,328.20-99,492.30-38,334.60

Finding the Fourth Proportional to 66,328.20, 99,492.30 and 38,334.60

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Solution

The fourth proportional to 66,328.20, 99,492.30 and 38,334.60 is: 57,501.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,328.20 : 99,492.30 = 38,334.60 : x
  2. Step 2: Convert to fraction form
    66,328.20/99,492.30 = 38,334.60/x
  3. Step 3: Cross multiply
    66,328.20x = 99,492.30 × 38,334.60
  4. Step 4: Simplify right side
    66,328.20x = 3,813,997,523.58
  5. Step 5: Solve for x
    x = 3,813,997,523.58/66,328.20
  6. Step 6: Final answer
    x = 57,501.90

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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.