Home / 84,302.27-126,450.42-21,122.91

Finding the Fourth Proportional to 84,302.27, 126,450.42 and 21,122.91

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Solution

The fourth proportional to 84,302.27, 126,450.42 and 21,122.91 is: 31,683.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,302.27 : 126,450.42 = 21,122.91 : x
  2. Step 2: Convert to fraction form
    84,302.27/126,450.42 = 21,122.91/x
  3. Step 3: Cross multiply
    84,302.27x = 126,450.42 × 21,122.91
  4. Step 4: Simplify right side
    84,302.27x = 2,671,000,761.91
  5. Step 5: Solve for x
    x = 2,671,000,761.91/84,302.27
  6. Step 6: Final answer
    x = 31,683.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.