Home / 57,949.63-86,931.74-20,500.90

Finding the Fourth Proportional to 57,949.63, 86,931.74 and 20,500.90

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Solution

The fourth proportional to 57,949.63, 86,931.74 and 20,500.90 is: 30,753.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,949.63 : 86,931.74 = 20,500.90 : x
  2. Step 2: Convert to fraction form
    57,949.63/86,931.74 = 20,500.90/x
  3. Step 3: Cross multiply
    57,949.63x = 86,931.74 × 20,500.90
  4. Step 4: Simplify right side
    57,949.63x = 1,782,178,908.57
  5. Step 5: Solve for x
    x = 1,782,178,908.57/57,949.63
  6. Step 6: Final answer
    x = 30,753.93

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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.