Home / 51,780.12-71,727.12-50,730.36

Finding the Fourth Proportional to 51,780.12, 71,727.12 and 50,730.36

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Solution

The fourth proportional to 51,780.12, 71,727.12 and 50,730.36 is: 70,272.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,780.12 : 71,727.12 = 50,730.36 : x
  2. Step 2: Convert to fraction form
    51,780.12/71,727.12 = 50,730.36/x
  3. Step 3: Cross multiply
    51,780.12x = 71,727.12 × 50,730.36
  4. Step 4: Simplify right side
    51,780.12x = 3,638,742,619.36
  5. Step 5: Solve for x
    x = 3,638,742,619.36/51,780.12
  6. Step 6: Final answer
    x = 70,272.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.