Home / 51,189.69-70,640.10-29,679.84

Finding the Fourth Proportional to 51,189.69, 70,640.10 and 29,679.84

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Solution

The fourth proportional to 51,189.69, 70,640.10 and 29,679.84 is: 40,957.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,189.69 : 70,640.10 = 29,679.84 : x
  2. Step 2: Convert to fraction form
    51,189.69/70,640.10 = 29,679.84/x
  3. Step 3: Cross multiply
    51,189.69x = 70,640.10 × 29,679.84
  4. Step 4: Simplify right side
    51,189.69x = 2,096,586,865.58
  5. Step 5: Solve for x
    x = 2,096,586,865.58/51,189.69
  6. Step 6: Final answer
    x = 40,957.21

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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.