Home / 78,324.50-108,176.92-53,130.26

Finding the Fourth Proportional to 78,324.50, 108,176.92 and 53,130.26

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Solution

The fourth proportional to 78,324.50, 108,176.92 and 53,130.26 is: 73,380.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,324.50 : 108,176.92 = 53,130.26 : x
  2. Step 2: Convert to fraction form
    78,324.50/108,176.92 = 53,130.26/x
  3. Step 3: Cross multiply
    78,324.50x = 108,176.92 × 53,130.26
  4. Step 4: Simplify right side
    78,324.50x = 5,747,467,885.60
  5. Step 5: Solve for x
    x = 5,747,467,885.60/78,324.50
  6. Step 6: Final answer
    x = 73,380.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.