Home / 83,457.45-115,173.36-47,650.79

Finding the Fourth Proportional to 83,457.45, 115,173.36 and 47,650.79

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Solution

The fourth proportional to 83,457.45, 115,173.36 and 47,650.79 is: 65,759.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,457.45 : 115,173.36 = 47,650.79 : x
  2. Step 2: Convert to fraction form
    83,457.45/115,173.36 = 47,650.79/x
  3. Step 3: Cross multiply
    83,457.45x = 115,173.36 × 47,650.79
  4. Step 4: Simplify right side
    83,457.45x = 5,488,101,878.89
  5. Step 5: Solve for x
    x = 5,488,101,878.89/83,457.45
  6. Step 6: Final answer
    x = 65,759.28

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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.