Home / 53,435.40-80,153.10-51,160.20

Finding the Fourth Proportional to 53,435.40, 80,153.10 and 51,160.20

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Solution

The fourth proportional to 53,435.40, 80,153.10 and 51,160.20 is: 76,740.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,435.40 : 80,153.10 = 51,160.20 : x
  2. Step 2: Convert to fraction form
    53,435.40/80,153.10 = 51,160.20/x
  3. Step 3: Cross multiply
    53,435.40x = 80,153.10 × 51,160.20
  4. Step 4: Simplify right side
    53,435.40x = 4,100,648,626.62
  5. Step 5: Solve for x
    x = 4,100,648,626.62/53,435.40
  6. Step 6: Final answer
    x = 76,740.30

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1.5x scale

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.