Home / 57,211.28-85,803.24-19,772.67

Finding the Fourth Proportional to 57,211.28, 85,803.24 and 19,772.67

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Solution

The fourth proportional to 57,211.28, 85,803.24 and 19,772.67 is: 29,654.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,211.28 : 85,803.24 = 19,772.67 : x
  2. Step 2: Convert to fraction form
    57,211.28/85,803.24 = 19,772.67/x
  3. Step 3: Cross multiply
    57,211.28x = 85,803.24 × 19,772.67
  4. Step 4: Simplify right side
    57,211.28x = 1,696,559,149.45
  5. Step 5: Solve for x
    x = 1,696,559,149.45/57,211.28
  6. Step 6: Final answer
    x = 29,654.28

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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.