Home / 57,549.48-86,292.72-20,099.76

Finding the Fourth Proportional to 57,549.48, 86,292.72 and 20,099.76

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Solution

The fourth proportional to 57,549.48, 86,292.72 and 20,099.76 is: 30,138.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,549.48 : 86,292.72 = 20,099.76 : x
  2. Step 2: Convert to fraction form
    57,549.48/86,292.72 = 20,099.76/x
  3. Step 3: Cross multiply
    57,549.48x = 86,292.72 × 20,099.76
  4. Step 4: Simplify right side
    57,549.48x = 1,734,462,961.75
  5. Step 5: Solve for x
    x = 1,734,462,961.75/57,549.48
  6. Step 6: Final answer
    x = 30,138.64

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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.