Home / 50,585.80-75,909.08-21,000.55

Finding the Fourth Proportional to 50,585.80, 75,909.08 and 21,000.55

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Solution

The fourth proportional to 50,585.80, 75,909.08 and 21,000.55 is: 31,513.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,585.80 : 75,909.08 = 21,000.55 : x
  2. Step 2: Convert to fraction form
    50,585.80/75,909.08 = 21,000.55/x
  3. Step 3: Cross multiply
    50,585.80x = 75,909.08 × 21,000.55
  4. Step 4: Simplify right side
    50,585.80x = 1,594,132,324.99
  5. Step 5: Solve for x
    x = 1,594,132,324.99/50,585.80
  6. Step 6: Final answer
    x = 31,513.44

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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.