Home / 83,080.20-114,650.70-51,267.50

Finding the Fourth Proportional to 83,080.20, 114,650.70 and 51,267.50

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Solution

The fourth proportional to 83,080.20, 114,650.70 and 51,267.50 is: 70,749.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,080.20 : 114,650.70 = 51,267.50 : x
  2. Step 2: Convert to fraction form
    83,080.20/114,650.70 = 51,267.50/x
  3. Step 3: Cross multiply
    83,080.20x = 114,650.70 × 51,267.50
  4. Step 4: Simplify right side
    83,080.20x = 5,877,854,762.25
  5. Step 5: Solve for x
    x = 5,877,854,762.25/83,080.20
  6. Step 6: Final answer
    x = 70,749.16

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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.