Home / 53,688.12-80,532.08-13,707.09

Finding the Fourth Proportional to 53,688.12, 80,532.08 and 13,707.09

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Solution

The fourth proportional to 53,688.12, 80,532.08 and 13,707.09 is: 20,560.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,688.12 : 80,532.08 = 13,707.09 : x
  2. Step 2: Convert to fraction form
    53,688.12/80,532.08 = 13,707.09/x
  3. Step 3: Cross multiply
    53,688.12x = 80,532.08 × 13,707.09
  4. Step 4: Simplify right side
    53,688.12x = 1,103,860,399.91
  5. Step 5: Solve for x
    x = 1,103,860,399.91/53,688.12
  6. Step 6: Final answer
    x = 20,560.61

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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.