Home / 84,282.10-126,430.39-21,952.50

Finding the Fourth Proportional to 84,282.10, 126,430.39 and 21,952.50

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Solution

The fourth proportional to 84,282.10, 126,430.39 and 21,952.50 is: 32,930.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,282.10 : 126,430.39 = 21,952.50 : x
  2. Step 2: Convert to fraction form
    84,282.10/126,430.39 = 21,952.50/x
  3. Step 3: Cross multiply
    84,282.10x = 126,430.39 × 21,952.50
  4. Step 4: Simplify right side
    84,282.10x = 2,775,463,136.48
  5. Step 5: Solve for x
    x = 2,775,463,136.48/84,282.10
  6. Step 6: Final answer
    x = 32,930.64

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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.