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Finding the Fourth Proportional to 58,154.52, 87,245.01 and 20,718.54

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Solution

The fourth proportional to 58,154.52, 87,245.01 and 20,718.54 is: 31,082.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,154.52 : 87,245.01 = 20,718.54 : x
  2. Step 2: Convert to fraction form
    58,154.52/87,245.01 = 20,718.54/x
  3. Step 3: Cross multiply
    58,154.52x = 87,245.01 × 20,718.54
  4. Step 4: Simplify right side
    58,154.52x = 1,807,589,229.49
  5. Step 5: Solve for x
    x = 1,807,589,229.49/58,154.52
  6. Step 6: Final answer
    x = 31,082.52

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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.