Home / 55,123.20-82,466.10-47,808.90

Finding the Fourth Proportional to 55,123.20, 82,466.10 and 47,808.90

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Solution

The fourth proportional to 55,123.20, 82,466.10 and 47,808.90 is: 71,523.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,123.20 : 82,466.10 = 47,808.90 : x
  2. Step 2: Convert to fraction form
    55,123.20/82,466.10 = 47,808.90/x
  3. Step 3: Cross multiply
    55,123.20x = 82,466.10 × 47,808.90
  4. Step 4: Simplify right side
    55,123.20x = 3,942,613,528.29
  5. Step 5: Solve for x
    x = 3,942,613,528.29/55,123.20
  6. Step 6: Final answer
    x = 71,523.67

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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.