Home / 84,420.68-126,584.24-34,535.79

Finding the Fourth Proportional to 84,420.68, 126,584.24 and 34,535.79

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Solution

The fourth proportional to 84,420.68, 126,584.24 and 34,535.79 is: 51,784.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,420.68 : 126,584.24 = 34,535.79 : x
  2. Step 2: Convert to fraction form
    84,420.68/126,584.24 = 34,535.79/x
  3. Step 3: Cross multiply
    84,420.68x = 126,584.24 × 34,535.79
  4. Step 4: Simplify right side
    84,420.68x = 4,371,686,557.27
  5. Step 5: Solve for x
    x = 4,371,686,557.27/84,420.68
  6. Step 6: Final answer
    x = 51,784.55

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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.