Home / 51,155.94-70,576.47-30,998.28

Finding the Fourth Proportional to 51,155.94, 70,576.47 and 30,998.28

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Solution

The fourth proportional to 51,155.94, 70,576.47 and 30,998.28 is: 42,766.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,155.94 : 70,576.47 = 30,998.28 : x
  2. Step 2: Convert to fraction form
    51,155.94/70,576.47 = 30,998.28/x
  3. Step 3: Cross multiply
    51,155.94x = 70,576.47 × 30,998.28
  4. Step 4: Simplify right side
    51,155.94x = 2,187,749,178.47
  5. Step 5: Solve for x
    x = 2,187,749,178.47/51,155.94
  6. Step 6: Final answer
    x = 42,766.28

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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.