Home / 51,122.26-70,532.31-30,972.70

Finding the Fourth Proportional to 51,122.26, 70,532.31 and 30,972.70

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Solution

The fourth proportional to 51,122.26, 70,532.31 and 30,972.70 is: 42,732.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,122.26 : 70,532.31 = 30,972.70 : x
  2. Step 2: Convert to fraction form
    51,122.26/70,532.31 = 30,972.70/x
  3. Step 3: Cross multiply
    51,122.26x = 70,532.31 × 30,972.70
  4. Step 4: Simplify right side
    51,122.26x = 2,184,576,077.94
  5. Step 5: Solve for x
    x = 2,184,576,077.94/51,122.26
  6. Step 6: Final answer
    x = 42,732.38

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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.