Home / 51,509.87-71,075.49-30,003.15

Finding the Fourth Proportional to 51,509.87, 71,075.49 and 30,003.15

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Solution

The fourth proportional to 51,509.87, 71,075.49 and 30,003.15 is: 41,399.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,509.87 : 71,075.49 = 30,003.15 : x
  2. Step 2: Convert to fraction form
    51,509.87/71,075.49 = 30,003.15/x
  3. Step 3: Cross multiply
    51,509.87x = 71,075.49 × 30,003.15
  4. Step 4: Simplify right side
    51,509.87x = 2,132,488,700.31
  5. Step 5: Solve for x
    x = 2,132,488,700.31/51,509.87
  6. Step 6: Final answer
    x = 41,399.62

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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.