Home / 51,020.35-70,400.34-28,359.52

Finding the Fourth Proportional to 51,020.35, 70,400.34 and 28,359.52

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Solution

The fourth proportional to 51,020.35, 70,400.34 and 28,359.52 is: 39,131.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,020.35 : 70,400.34 = 28,359.52 : x
  2. Step 2: Convert to fraction form
    51,020.35/70,400.34 = 28,359.52/x
  3. Step 3: Cross multiply
    51,020.35x = 70,400.34 × 28,359.52
  4. Step 4: Simplify right side
    51,020.35x = 1,996,519,674.24
  5. Step 5: Solve for x
    x = 1,996,519,674.24/51,020.35
  6. Step 6: Final answer
    x = 39,131.83

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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.