Home / 52,074.24-78,116.16-18,789.12

Finding the Fourth Proportional to 52,074.24, 78,116.16 and 18,789.12

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Solution

The fourth proportional to 52,074.24, 78,116.16 and 18,789.12 is: 28,185.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,074.24 : 78,116.16 = 18,789.12 : x
  2. Step 2: Convert to fraction form
    52,074.24/78,116.16 = 18,789.12/x
  3. Step 3: Cross multiply
    52,074.24x = 78,116.16 × 18,789.12
  4. Step 4: Simplify right side
    52,074.24x = 1,467,733,904.18
  5. Step 5: Solve for x
    x = 1,467,733,904.18/52,074.24
  6. Step 6: Final answer
    x = 28,185.41

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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.