Home / 57,116.81-78,819.08-31,622.67

Finding the Fourth Proportional to 57,116.81, 78,819.08 and 31,622.67

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Solution

The fourth proportional to 57,116.81, 78,819.08 and 31,622.67 is: 43,638.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,116.81 : 78,819.08 = 31,622.67 : x
  2. Step 2: Convert to fraction form
    57,116.81/78,819.08 = 31,622.67/x
  3. Step 3: Cross multiply
    57,116.81x = 78,819.08 × 31,622.67
  4. Step 4: Simplify right side
    57,116.81x = 2,492,469,598.43
  5. Step 5: Solve for x
    x = 2,492,469,598.43/57,116.81
  6. Step 6: Final answer
    x = 43,638.11

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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.