Home / 50,972.10-76,457.76-20,986.14

Finding the Fourth Proportional to 50,972.10, 76,457.76 and 20,986.14

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Solution

The fourth proportional to 50,972.10, 76,457.76 and 20,986.14 is: 31,479.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,972.10 : 76,457.76 = 20,986.14 : x
  2. Step 2: Convert to fraction form
    50,972.10/76,457.76 = 20,986.14/x
  3. Step 3: Cross multiply
    50,972.10x = 76,457.76 × 20,986.14
  4. Step 4: Simplify right side
    50,972.10x = 1,604,553,255.45
  5. Step 5: Solve for x
    x = 1,604,553,255.45/50,972.10
  6. Step 6: Final answer
    x = 31,479.05

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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.