Home / 53,000.50-79,537.20-21,835.75

Finding the Fourth Proportional to 53,000.50, 79,537.20 and 21,835.75

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Solution

The fourth proportional to 53,000.50, 79,537.20 and 21,835.75 is: 32,768.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,000.50 : 79,537.20 = 21,835.75 : x
  2. Step 2: Convert to fraction form
    53,000.50/79,537.20 = 21,835.75/x
  3. Step 3: Cross multiply
    53,000.50x = 79,537.20 × 21,835.75
  4. Step 4: Simplify right side
    53,000.50x = 1,736,754,414.90
  5. Step 5: Solve for x
    x = 1,736,754,414.90/53,000.50
  6. Step 6: Final answer
    x = 32,768.64

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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.