Home / 84,568.18-126,871.74-25,405

Finding the Fourth Proportional to 84,568.18, 126,871.74 and 25,405

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Solution

The fourth proportional to 84,568.18, 126,871.74 and 25,405 is: 38,113.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,568.18 : 126,871.74 = 25,405 : x
  2. Step 2: Convert to fraction form
    84,568.18/126,871.74 = 25,405/x
  3. Step 3: Cross multiply
    84,568.18x = 126,871.74 × 25,405
  4. Step 4: Simplify right side
    84,568.18x = 3,223,176,554.70
  5. Step 5: Solve for x
    x = 3,223,176,554.70/84,568.18
  6. Step 6: Final answer
    x = 38,113.35

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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.