Home / 84,303.38-126,452.09-21,124.04

Finding the Fourth Proportional to 84,303.38, 126,452.09 and 21,124.04

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Solution

The fourth proportional to 84,303.38, 126,452.09 and 21,124.04 is: 31,685.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,303.38 : 126,452.09 = 21,124.04 : x
  2. Step 2: Convert to fraction form
    84,303.38/126,452.09 = 21,124.04/x
  3. Step 3: Cross multiply
    84,303.38x = 126,452.09 × 21,124.04
  4. Step 4: Simplify right side
    84,303.38x = 2,671,178,427.79
  5. Step 5: Solve for x
    x = 2,671,178,427.79/84,303.38
  6. Step 6: Final answer
    x = 31,685.31

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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.