Home / 51,313.32-70,813.80-28,651.44

Finding the Fourth Proportional to 51,313.32, 70,813.80 and 28,651.44

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Solution

The fourth proportional to 51,313.32, 70,813.80 and 28,651.44 is: 39,539.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,313.32 : 70,813.80 = 28,651.44 : x
  2. Step 2: Convert to fraction form
    51,313.32/70,813.80 = 28,651.44/x
  3. Step 3: Cross multiply
    51,313.32x = 70,813.80 × 28,651.44
  4. Step 4: Simplify right side
    51,313.32x = 2,028,917,341.87
  5. Step 5: Solve for x
    x = 2,028,917,341.87/51,313.32
  6. Step 6: Final answer
    x = 39,539.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.