Home / 53,125.12-79,687.74-13,682.32

Finding the Fourth Proportional to 53,125.12, 79,687.74 and 13,682.32

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Solution

The fourth proportional to 53,125.12, 79,687.74 and 13,682.32 is: 20,523.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,125.12 : 79,687.74 = 13,682.32 : x
  2. Step 2: Convert to fraction form
    53,125.12/79,687.74 = 13,682.32/x
  3. Step 3: Cross multiply
    53,125.12x = 79,687.74 × 13,682.32
  4. Step 4: Simplify right side
    53,125.12x = 1,090,313,158.76
  5. Step 5: Solve for x
    x = 1,090,313,158.76/53,125.12
  6. Step 6: Final answer
    x = 20,523.50

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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.